256136525094 has 32 divisors (see below), whose sum is σ = 512976499200. Its totient is φ = 85261663872.

The previous prime is 256136525023. The next prime is 256136525153. The reversal of 256136525094 is 490525631652.

It is a happy number.

It is a congruent number.

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, 23486847 + ... + 23497749.

It is an arithmetic number, because the mean of its divisors is an integer number (16030515600).

Almost surely, 2^256136525094 is an apocalyptic number.

256136525094 is an abundant number, since it is smaller than the sum of its proper divisors (256839974106).

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

256136525094 is a wasteful number, since it uses less digits than its factorization.

256136525094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924.

The product of its (nonzero) digits is 1944000, while the sum is 48.

The spelling of 256136525094 in words is "two hundred fifty-six billion, one hundred thirty-six million, five hundred twenty-five thousand, ninety-four".