257372074394 has 8 divisors (see below), whose sum is σ = 386727191508. Its totient is φ = 128463010560.

The previous prime is 257372074381. The next prime is 257372074423. The reversal of 257372074394 is 493470273752.

It can be written as a sum of positive squares in 2 ways, for example, as 154995753025 + 102376321369 = 393695^2 + 319963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 111511877 + ... + 111514184.

Almost surely, 2^257372074394 is an apocalyptic number.

257372074394 is a deficient number, since it is larger than the sum of its proper divisors (129355117114).

257372074394 is a wasteful number, since it uses less digits than its factorization.

257372074394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223026640.

The product of its (nonzero) digits is 8890560, while the sum is 53.

The spelling of 257372074394 in words is "two hundred fifty-seven billion, three hundred seventy-two million, seventy-four thousand, three hundred ninety-four".