256310446512 has 40 divisors (see below), whose sum is σ = 662445428656. Its totient is φ = 85396801536.

The previous prime is 256310446507. The next prime is 256310446523. The reversal of 256310446512 is 215644013652.

256310446512 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×256310446512³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146793 + ... + 1351944.

Almost surely, 2^256310446512 is an apocalyptic number.

It is an amenable number.

256310446512 is an abundant number, since it is smaller than the sum of its proper divisors (406134982144).

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

256310446512 is a wasteful number, since it uses less digits than its factorization.

256310446512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500885 (or 2500879 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 256310446512 in words is "two hundred fifty-six billion, three hundred ten million, four hundred forty-six thousand, five hundred twelve".