Perfect Square
72950162358560358400 is a perfect square (8541086720 × 8541086720)
72950162358560358400 is a perfect square (8541086720 × 8541086720)
72950162358560358400 is even
Previous even number is 72950162358560358398
Next even number is 72950162358560358402
388220789452638623493672290541623085707318624417480704000000
111111010001100011000010100010100010011001000100000000000000000000