256726344226410 has 48 divisors (see below), whose sum is σ = 667704581336520. Its totient is φ = 68438195758080.

The previous prime is 256726344226393. The next prime is 256726344226411. The reversal of 256726344226410 is 14622443627652.

256726344226410 is a `hidden beast` number, since 2 + 5 + 6 + 7 + 26 + 344 + 2 + 264 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 253451398904649 + 3274945321761 = 15920157^2 + 1809681^2 .

It is not an unprimeable number, because it can be changed into a prime (256726344226411) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 461443411 + ... + 461999430.

Almost surely, 2^{256726344226410} is an apocalyptic number.

256726344226410 is an abundant number, since it is smaller than the sum of its proper divisors (410978237110110).

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

256726344226410 is a wasteful number, since it uses less digits than its factorization.

256726344226410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923445943 (or 923445940 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 54.

The spelling of 256726344226410 in words is "two hundred fifty-six trillion, seven hundred twenty-six billion, three hundred forty-four million, two hundred twenty-six thousand, four hundred ten".