256613319802 has 8 divisors (see below), whose sum is σ = 439908548256. Its totient is φ = 109977137052.

The previous prime is 256613319797. The next prime is 256613319817. The reversal of 256613319802 is 208913316652.

256613319802 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 9164761408 + ... + 9164761435.

It is an arithmetic number, because the mean of its divisors is an integer number (54988568532).

Almost surely, 2^256613319802 is an apocalyptic number.

256613319802 is a deficient number, since it is larger than the sum of its proper divisors (183295228454).

256613319802 is a wasteful number, since it uses less digits than its factorization.

256613319802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18329522852.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 256613319802 in words is "two hundred fifty-six billion, six hundred thirteen million, three hundred nineteen thousand, eight hundred two".