256273314376 has 16 divisors (see below), whose sum is σ = 480570115500. Its totient is φ = 128121283584.

The previous prime is 256273314343. The next prime is 256273314397. The reversal of 256273314376 is 673413372652.

It can be written as a sum of positive squares in 2 ways, for example, as 249926005476 + 6347308900 = 499926^2 + 79670^2 .

It is a super-2 number, since 2×256273314376² (a number of 24 digits) contains 22 as substring.

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, 1850701 + ... + 1984348.

Almost surely, 2^256273314376 is an apocalyptic number.

It is an amenable number.

256273314376 is a deficient number, since it is larger than the sum of its proper divisors (224296801124).

256273314376 is a wasteful number, since it uses less digits than its factorization.

256273314376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3843408 (or 3843404 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 49.

The spelling of 256273314376 in words is "two hundred fifty-six billion, two hundred seventy-three million, three hundred fourteen thousand, three hundred seventy-six".