257040636232672 has 24 divisors (see below), whose sum is σ = 507875643404136. Its totient is φ = 128056345844352.

The previous prime is 257040636232663. The next prime is 257040636232727. The reversal of 257040636232672 is 276232636040752.

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, 14499124498 + ... + 14499142225.

It is an arithmetic number, because the mean of its divisors is an integer number (21161485141839).

Almost surely, 2^{257040636232672} is an apocalyptic number.

It is an amenable number.

257040636232672 is a deficient number, since it is larger than the sum of its proper divisors (250835007171464).

257040636232672 is a wasteful number, since it uses less digits than its factorization.

257040636232672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28998267010 (or 28998267002 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 55.

The spelling of 257040636232672 in words is "two hundred fifty-seven trillion, forty billion, six hundred thirty-six million, two hundred thirty-two thousand, six hundred seventy-two".