257713903580 has 72 divisors (see below), whose sum is σ = 632332180368. Its totient is φ = 87969729792.

The previous prime is 257713903571. The next prime is 257713903627. The reversal of 257713903580 is 85309317752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356777 + ... + 801696.

It is an arithmetic number, because the mean of its divisors is an integer number (8782391394).

Almost surely, 2^257713903580 is an apocalyptic number.

257713903580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257713903580 is an abundant number, since it is smaller than the sum of its proper divisors (374618276788).

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

257713903580 is a wasteful number, since it uses less digits than its factorization.

257713903580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158723 (or 1158714 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 50.

The spelling of 257713903580 in words is "two hundred fifty-seven billion, seven hundred thirteen million, nine hundred three thousand, five hundred eighty".