256889530308 has 24 divisors (see below), whose sum is σ = 599513910912. Its totient is φ = 85614842464.

The previous prime is 256889530307. The next prime is 256889530321. The reversal of 256889530308 is 803035988652.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (256889530307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1803660 + ... + 1940867.

It is an arithmetic number, because the mean of its divisors is an integer number (24979746288).

Almost surely, 2^256889530308 is an apocalyptic number.

It is an amenable number.

256889530308 is an abundant number, since it is smaller than the sum of its proper divisors (342624380604).

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

256889530308 is a wasteful number, since it uses less digits than its factorization.

256889530308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3750251 (or 3750249 counting only the distinct ones).

The product of its (nonzero) digits is 12441600, while the sum is 57.

The spelling of 256889530308 in words is "two hundred fifty-six billion, eight hundred eighty-nine million, five hundred thirty thousand, three hundred eight".