256307604234 has 32 divisors (see below), whose sum is σ = 560364950016. Its totient is φ = 77509476720.

The previous prime is 256307604209. The next prime is 256307604253. The reversal of 256307604234 is 432406703652.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3954972 + ... + 4019255.

It is an arithmetic number, because the mean of its divisors is an integer number (17511404688).

Almost surely, 2^256307604234 is an apocalyptic number.

256307604234 is an abundant number, since it is smaller than the sum of its proper divisors (304057345782).

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

256307604234 is a wasteful number, since it uses less digits than its factorization.

256307604234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974730.

The product of its (nonzero) digits is 725760, while the sum is 42.

The spelling of 256307604234 in words is "two hundred fifty-six billion, three hundred seven million, six hundred four thousand, two hundred thirty-four".