257447532364 has 48 divisors (see below), whose sum is σ = 538346904480. Its totient is φ = 106340111360.

The previous prime is 257447532341. The next prime is 257447532389. The reversal of 257447532364 is 463235744752.

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, 5912467 + ... + 5955850.

It is an arithmetic number, because the mean of its divisors is an integer number (11215560510).

Almost surely, 2^257447532364 is an apocalyptic number.

It is an amenable number.

257447532364 is an abundant number, since it is smaller than the sum of its proper divisors (280899372116).

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

257447532364 is a wasteful number, since it uses less digits than its factorization.

257447532364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11868378 (or 11868376 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 52.

The spelling of 257447532364 in words is "two hundred fifty-seven billion, four hundred forty-seven million, five hundred thirty-two thousand, three hundred sixty-four".