257302214128 has 20 divisors (see below), whose sum is σ = 498646227208. Its totient is φ = 128619316800.

The previous prime is 257302214111. The next prime is 257302214131. The reversal of 257302214128 is 821412203752.

It is a congruent number.

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, 1920051 + ... + 2049682.

Almost surely, 2^257302214128 is an apocalyptic number.

It is an amenable number.

257302214128 is a deficient number, since it is larger than the sum of its proper divisors (241344013080).

257302214128 is a wasteful number, since it uses less digits than its factorization.

257302214128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3973792 (or 3973786 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 257302214128 in words is "two hundred fifty-seven billion, three hundred two million, two hundred fourteen thousand, one hundred twenty-eight".