231157748264 has 8 divisors (see below), whose sum is σ = 433420778010. Its totient is φ = 115578874128.

The previous prime is 231157748257. The next prime is 231157748293. The reversal of 231157748264 is 462847751132.

It can be written as a sum of positive squares in only one way, i.e., 141970704100 + 89187044164 = 376790^2 + 298642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14447359259 + ... + 14447359274.

Almost surely, 2^231157748264 is an apocalyptic number.

It is an amenable number.

231157748264 is a deficient number, since it is larger than the sum of its proper divisors (202263029746).

231157748264 is a wasteful number, since it uses less digits than its factorization.

231157748264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28894718539 (or 28894718535 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 50.

The spelling of 231157748264 in words is "two hundred thirty-one billion, one hundred fifty-seven million, seven hundred forty-eight thousand, two hundred sixty-four".