257113870788 has 24 divisors (see below), whose sum is σ = 600184187008. Its totient is φ = 85668649056.

The previous prime is 257113870771. The next prime is 257113870807. The reversal of 257113870788 is 887078311752.

It is a happy number.

It is a super-2 number, since 2×257113870788² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4467031 + ... + 4524222.

Almost surely, 2^257113870788 is an apocalyptic number.

It is an amenable number.

257113870788 is an abundant number, since it is smaller than the sum of its proper divisors (343070316220).

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

257113870788 is a wasteful number, since it uses less digits than its factorization.

257113870788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8993643 (or 8993641 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 57.

The spelling of 257113870788 in words is "two hundred fifty-seven billion, one hundred thirteen million, eight hundred seventy thousand, seven hundred eighty-eight".