257716232572 has 12 divisors (see below), whose sum is σ = 452139438520. Its totient is φ = 128533535856.

The previous prime is 257716232537. The next prime is 257716232581. The reversal of 257716232572 is 275232617752.

It is a super-2 number, since 2×257716232572² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81143322 + ... + 81146497.

Almost surely, 2^257716232572 is an apocalyptic number.

It is an amenable number.

257716232572 is a deficient number, since it is larger than the sum of its proper divisors (194423205948).

257716232572 is a wasteful number, since it uses less digits than its factorization.

257716232572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162290220 (or 162290218 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 49.

The spelling of 257716232572 in words is "two hundred fifty-seven billion, seven hundred sixteen million, two hundred thirty-two thousand, five hundred seventy-two".