diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 696f56aaeb5..a8af8751e9e 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -52,7 +52,8 @@ The <action> type attribute can be add,update,fix,remove.
       <action type="fix" dev="ggregory" due-to="Gary Gregory, Arturo Bernal">CompressorException extends IOException #605, see also https://github.com/apache/httpcomponents-client/pull/580.</action>
       <action type="fix" dev="ggregory" due-to="Glavo">Update outdated descriptions in IOUtils and IOUtilsTest #612.</action>
       <action type="fix" dev="ggregory" due-to="Glavo">Remove unused local variable in ZipFile #615.</action>
-      <action type="fix" dev="ggregory" due-to="Glavo, Gary Gregory">Optimize ZipEightByteInteger #614.</action> 
+      <action type="fix" dev="ggregory" due-to="Glavo, Gary Gregory">Optimize ZipEightByteInteger #614.</action>
+      <action type="fix" dev="ggregory" due-to="Gary Gregory">ZipEightByteInteger.toString() now returns a number string without text prefix, like BigInteger.</action>
       <!-- ADD -->
       <action type="add" dev="ggregory" due-to="Gary Gregory">Add GzipParameters.getModificationInstant().</action>
       <action type="add" dev="ggregory" due-to="Gary Gregory">Add GzipParameters.setModificationInstant(Instant).</action>
diff --git a/src/main/java/org/apache/commons/compress/archivers/zip/ZipEightByteInteger.java b/src/main/java/org/apache/commons/compress/archivers/zip/ZipEightByteInteger.java
index 0e205e49bde..63562b03af9 100644
--- a/src/main/java/org/apache/commons/compress/archivers/zip/ZipEightByteInteger.java
+++ b/src/main/java/org/apache/commons/compress/archivers/zip/ZipEightByteInteger.java
@@ -30,7 +30,7 @@
  */
 public final class ZipEightByteInteger implements Serializable {
 
-    private static final int BYTES = 8;
+    static final int BYTES = 8;
 
     private static final long serialVersionUID = 1L;
 
@@ -204,6 +204,6 @@ public int hashCode() {
 
     @Override
     public String toString() {
-        return "ZipEightByteInteger value: " + Long.toUnsignedString(value);
+        return Long.toUnsignedString(value);
     }
 }
diff --git a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
index 41d531660d7..83a686695a3 100644
--- a/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
+++ b/src/test/java/org/apache/commons/compress/archivers/zip/ZipEightByteIntegerTest.java
@@ -149,7 +149,10 @@ public void testSign() {
      */
     @Test
     public void testToString() {
-        assertEquals("ZipEightByteInteger value: 18446744073709551615", newMaxValue().toString());
+        assertEquals("0", ZipEightByteInteger.ZERO.toString());
+        assertEquals("0", ZipEightByteInteger.getValue(new byte[ZipEightByteInteger.BYTES]).toString());
+        assertEquals(Long.toString(Long.MAX_VALUE), new ZipEightByteInteger(BigInteger.valueOf(Long.MAX_VALUE)).toString());
+        assertEquals("18446744073709551615", newMaxValue().toString());
     }
 
     /**