257113870772 has 48 divisors (see below), whose sum is σ = 517127647680. Its totient is φ = 110624716800.

The previous prime is 257113870771. The next prime is 257113870807. The reversal of 257113870772 is 277078311752.

It is a super-2 number, since 2×257113870772² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 257113870772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257113870771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 857108 + ... + 1117524.

It is an arithmetic number, because the mean of its divisors is an integer number (10773492660).

Almost surely, 2^257113870772 is an apocalyptic number.

257113870772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

257113870772 is an abundant number, since it is smaller than the sum of its proper divisors (260013776908).

257113870772 is a wasteful number, since it uses less digits than its factorization.

257113870772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261632 (or 261630 counting only the distinct ones).

The product of its (nonzero) digits is 1152480, while the sum is 50.

The spelling of 257113870772 in words is "two hundred fifty-seven billion, one hundred thirteen million, eight hundred seventy thousand, seven hundred seventy-two".