257527420432 has 20 divisors (see below), whose sum is σ = 498989290320. Its totient is φ = 128755990688.

The previous prime is 257527420417. The next prime is 257527420471. The reversal of 257527420432 is 234024725752.

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, 202318 + ... + 745645.

It is an arithmetic number, because the mean of its divisors is an integer number (24949464516).

Almost surely, 2^257527420432 is an apocalyptic number.

It is an amenable number.

257527420432 is a deficient number, since it is larger than the sum of its proper divisors (241461869888).

257527420432 is a wasteful number, since it uses less digits than its factorization.

257527420432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964950 (or 964944 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 43.

The spelling of 257527420432 in words is "two hundred fifty-seven billion, five hundred twenty-seven million, four hundred twenty thousand, four hundred thirty-two".