Perfect Square
81683741231597828401 is a perfect square (9037905799 × 9037905799)
81683741231597828401 is a perfect square (9037905799 × 9037905799)
81683741231597828401 is odd
Previous odd number is 81683741231597828399
Next odd number is 81683741231597828403
1000110110110010110111100011101111100000010010100010011100100110001
545013001315426614935925372101064625382500808938092637165201