257028495792 has 80 divisors (see below), whose sum is σ = 705857560320. Its totient is φ = 80363232000.

The previous prime is 257028495761. The next prime is 257028495817. The reversal of 257028495792 is 297594820752.

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, 1303084 + ... + 1487307.

It is an arithmetic number, because the mean of its divisors is an integer number (8823219504).

Almost surely, 2^257028495792 is an apocalyptic number.

It is an amenable number.

257028495792 is an abundant number, since it is smaller than the sum of its proper divisors (448829064528).

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

257028495792 is a wasteful number, since it uses less digits than its factorization.

257028495792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790522 (or 2790516 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 60.

The spelling of 257028495792 in words is "two hundred fifty-seven billion, twenty-eight million, four hundred ninety-five thousand, seven hundred ninety-two".