Perfect Square
1208925819597036988661824 is a perfect square (1099511627768 × 1099511627768)
1208925819597036988661824 is a perfect square (1099511627768 × 1099511627768)
11111111 11111111 11111111 11111111 11110000 00000000 00000000 00000000 00000000 01000000
1208925819597036988661824 is even
Previous even number is 1208925819597036988661822
Next even number is 1208925819597036988661826
1766847064701251303460269009088728390901906866131824668041248281544884224