256074579948 has 48 divisors (see below), whose sum is σ = 652984166016. Its totient is φ = 77460504960.

The previous prime is 256074579907. The next prime is 256074579967. The reversal of 256074579948 is 849975470652.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1648561 + ... + 1797192.

It is an arithmetic number, because the mean of its divisors is an integer number (13603836792).

Almost surely, 2^256074579948 is an apocalyptic number.

It is an amenable number.

256074579948 is an abundant number, since it is smaller than the sum of its proper divisors (396909586068).

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

256074579948 is a wasteful number, since it uses less digits than its factorization.

256074579948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3446334 (or 3446332 counting only the distinct ones).

The product of its (nonzero) digits is 152409600, while the sum is 66.

The spelling of 256074579948 in words is "two hundred fifty-six billion, seventy-four million, five hundred seventy-nine thousand, nine hundred forty-eight".