Perfect Square
816398105068461018196853764 is a perfect square (28572681096958 × 28572681096958)
816398105068461018196853764 is a perfect square (28572681096958 × 28572681096958)
816398105068461018196853764 is even
Previous even number is 816398105068461018196853762
Next even number is 816398105068461018196853766
544134125986246542266791889325191463601282719146295293824026993776440240200007744
101010001101001111000001011111010011010111100001111010111111100011010110011100010000000100