256200629081850 has 72 divisors (see below), whose sum is σ = 692128594718652. Its totient is φ = 67942708243200.

The previous prime is 256200629081849. The next prime is 256200629081867. The reversal of 256200629081850 is 58180926002652.

256200629081850 is a `hidden beast` number, since 2 + 5 + 6 + 2 + 0 + 0 + 629 + 0 + 8 + 1 + 8 + 5 + 0 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 28136839709889 + 228063789371961 = 5304417^2 + 15101781^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1572666427 + ... + 1572829326.

Almost surely, 2^{256200629081850} is an apocalyptic number.

256200629081850 is an abundant number, since it is smaller than the sum of its proper divisors (435927965636802).

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

256200629081850 is a wasteful number, since it uses less digits than its factorization.

256200629081850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145495952 (or 3145495944 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 256200629081850 in words is "two hundred fifty-six trillion, two hundred billion, six hundred twenty-nine million, eighty-one thousand, eight hundred fifty".