256746703712 has 12 divisors (see below), whose sum is σ = 505470072996. Its totient is φ = 128373351840.

The previous prime is 256746703691. The next prime is 256746703729. The reversal of 256746703712 is 217307647652.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4011667214 + ... + 4011667277.

It is an arithmetic number, because the mean of its divisors is an integer number (42122506083).

Almost surely, 2^256746703712 is an apocalyptic number.

It is an amenable number.

256746703712 is a deficient number, since it is larger than the sum of its proper divisors (248723369284).

256746703712 is an equidigital number, since it uses as much as digits as its factorization.

256746703712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8023334501 (or 8023334493 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 256746703712 in words is "two hundred fifty-six billion, seven hundred forty-six million, seven hundred three thousand, seven hundred twelve".