12457238544 has 135 divisors (see below), whose sum is σ = 35632900927. Its totient is φ = 4062676800.

The previous prime is 12457238533. The next prime is 12457238557. The reversal of 12457238544 is 44583275421.

The square root of 12457238544 is 111612.

It is a perfect power (a square), and thus also a powerful number.

12457238544 is a `hidden beast` number, since 1 + 2 + 4 + 5 + 72 + 38 + 544 = 666.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12457238544.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 95093359 + ... + 95093489.

Almost surely, 2^12457238544 is an apocalyptic number.

12457238544 is the 111612-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12457238544

12457238544 is an abundant number, since it is smaller than the sum of its proper divisors (23175662383).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12457238544 is an equidigital number, since it uses as much as digits as its factorization.

12457238544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 207 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 45.

It can be divided in two parts, 12457 and 238544, that added together give a square (251001 = 501²).

The spelling of 12457238544 in words is "twelve billion, four hundred fifty-seven million, two hundred thirty-eight thousand, five hundred forty-four".