257624812632 has 64 divisors (see below), whose sum is σ = 714521865600. Its totient is φ = 76744931840.

The previous prime is 257624812609. The next prime is 257624812651. The reversal of 257624812632 is 236218426752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8254353 + ... + 8285504.

It is an arithmetic number, because the mean of its divisors is an integer number (11164404150).

Almost surely, 2^257624812632 is an apocalyptic number.

257624812632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

257624812632 is an abundant number, since it is smaller than the sum of its proper divisors (456897052968).

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

257624812632 is a wasteful number, since it uses less digits than its factorization.

257624812632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16539936 (or 16539932 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 48.

The spelling of 257624812632 in words is "two hundred fifty-seven billion, six hundred twenty-four million, eight hundred twelve thousand, six hundred thirty-two".