Index: src/wp-includes/comment-template.php
===================================================================
--- src/wp-includes/comment-template.php	(revision 38842)
+++ src/wp-includes/comment-template.php	(working copy)
@@ -835,7 +835,7 @@
  * @since 1.5.0
  *
  * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
- * @return int The number of comments a post has.
+ * @return string The number of comments a post has.
  */
 function get_comments_number( $post_id = 0 ) {
 	$post = get_post( $post_id );