256328812522 has 16 divisors (see below), whose sum is σ = 385417004544. Its totient is φ = 127856716000.

The previous prime is 256328812499. The next prime is 256328812543. The reversal of 256328812522 is 225218823652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2141397 + ... + 2257927.

It is an arithmetic number, because the mean of its divisors is an integer number (24088562784).

Almost surely, 2^256328812522 is an apocalyptic number.

256328812522 is a deficient number, since it is larger than the sum of its proper divisors (129088192022).

256328812522 is a wasteful number, since it uses less digits than its factorization.

256328812522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119165.

The product of its digits is 921600, while the sum is 46.

The spelling of 256328812522 in words is "two hundred fifty-six billion, three hundred twenty-eight million, eight hundred twelve thousand, five hundred twenty-two".