Index: src/wp-includes/class-wp-user-query.php
===================================================================
--- src/wp-includes/class-wp-user-query.php	(revision 41336)
+++ src/wp-includes/class-wp-user-query.php	(working copy)
@@ -40,6 +40,15 @@
 	 */
 	private $total_users = 0;
 
+        /**
+         * The number of pages.
+         *
+         * @since 4.9.0
+         * @access public
+         * @var int
+         */
+        public $max_num_pages = 0;
+
 	/**
 	 * Metadata query container.
 	 *
@@ -608,6 +617,10 @@
 		if ( isset( $qv['count_total'] ) && $qv['count_total'] )
 			$this->total_users = (int) $wpdb->get_var( apply_filters( 'found_users_query', 'SELECT FOUND_ROWS()' ) );
 
+                if( $this->total_users && isset( $qv['number'] ) && $qv['number'] > 0 ) {
+                        $this->max_num_pages = ceil( $this->total_users / $qv['number'] );
+                }
+
 		if ( !$this->results )
 			return;