Perfect Square
81537712097275560857481 is a perfect square (285548090691 × 285548090691)
81537712097275560857481 is a perfect square (285548090691 × 285548090691)
81537712097275560857481 is odd
Previous odd number is 81537712097275560857479
Next odd number is 81537712097275560857483
10001010001000010101100010001000110110010100010010100101110000000111110001001
542095202316477698354097324963606120049349303655812505014829327415641