256326274476276 has 12 divisors (see below), whose sum is σ = 598094640444672. Its totient is φ = 85442091492088.

The previous prime is 256326274476257. The next prime is 256326274476301. The reversal of 256326274476276 is 672674472623652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 256326274476276.

It is a congruent number.

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, 10680261436500 + ... + 10680261436523.

It is an arithmetic number, because the mean of its divisors is an integer number (49841220037056).

Almost surely, 2^{256326274476276} is an apocalyptic number.

It is an amenable number.

256326274476276 is an abundant number, since it is smaller than the sum of its proper divisors (341768365968396).

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

256326274476276 is a wasteful number, since it uses less digits than its factorization.

256326274476276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21360522873030 (or 21360522873028 counting only the distinct ones).

The product of its digits is 1706987520, while the sum is 69.

The spelling of 256326274476276 in words is "two hundred fifty-six trillion, three hundred twenty-six billion, two hundred seventy-four million, four hundred seventy-six thousand, two hundred seventy-six".