431383020256 has 48 divisors (see below), whose sum is σ = 855756501264. Its totient is φ = 214054124544.

The previous prime is 431383020221. The next prime is 431383020281. The reversal of 431383020256 is 652020383134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2178766 + ... + 2368498.

It is an arithmetic number, because the mean of its divisors is an integer number (17828260443).

Almost surely, 2^431383020256 is an apocalyptic number.

It is an amenable number.

431383020256 is a deficient number, since it is larger than the sum of its proper divisors (424373481008).

431383020256 is a wasteful number, since it uses less digits than its factorization.

431383020256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190283 (or 190275 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 431383020256 in words is "four hundred thirty-one billion, three hundred eighty-three million, twenty thousand, two hundred fifty-six".