256634314732706 has 32 divisors (see below), whose sum is σ = 411750991370880. Its totient is φ = 119741028803200.

The previous prime is 256634314732687. The next prime is 256634314732739. The reversal of 256634314732706 is 607237413436652.

It is a super-2 number, since 2×256634314732706² (a number of 30 digits) contains 22 as substring.

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, 504045710 + ... + 504554601.

It is an arithmetic number, because the mean of its divisors is an integer number (12867218480340).

Almost surely, 2^{256634314732706} is an apocalyptic number.

256634314732706 is a deficient number, since it is larger than the sum of its proper divisors (155116676638174).

256634314732706 is a wasteful number, since it uses less digits than its factorization.

256634314732706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008600490.

The product of its (nonzero) digits is 91445760, while the sum is 59.

The spelling of 256634314732706 in words is "two hundred fifty-six trillion, six hundred thirty-four billion, three hundred fourteen million, seven hundred thirty-two thousand, seven hundred six".