8640250956 has 72 divisors (see below), whose sum is σ = 22014720000. Its totient is φ = 2857213920.

The previous prime is 8640250951. The next prime is 8640250961. The reversal of 8640250956 is 6590520468.

It is an interprime number because it is at equal distance from previous prime (8640250951) and next prime (8640250961).

It is not an unprimeable number, because it can be changed into a prime (8640250951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2879545 + ... + 2882543.

It is an arithmetic number, because the mean of its divisors is an integer number (305760000).

Almost surely, 2^8640250956 is an apocalyptic number.

It is an amenable number.

8640250956 is an abundant number, since it is smaller than the sum of its proper divisors (13374469044).

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

8640250956 is a wasteful number, since it uses less digits than its factorization.

8640250956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3619 (or 3614 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 8640250956 is about 92952.9502275210. The cubic root of 8640250956 is about 2051.9910028902.

The spelling of 8640250956 in words is "eight billion, six hundred forty million, two hundred fifty thousand, nine hundred fifty-six".