8565949872 has 30 divisors (see below), whose sum is σ = 23972762892. Its totient is φ = 2855316576.

The previous prime is 8565949837. The next prime is 8565949901. The reversal of 8565949872 is 2789495658.

8565949872 is a `hidden beast` number, since 85 + 65 + 9 + 498 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29742738 + ... + 29743025.

Almost surely, 2^8565949872 is an apocalyptic number.

It is an amenable number.

8565949872 is an abundant number, since it is smaller than the sum of its proper divisors (15406813020).

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

8565949872 is a wasteful number, since it uses less digits than its factorization.

8565949872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59485777 (or 59485768 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The square root of 8565949872 is about 92552.4168890256. The cubic root of 8565949872 is about 2046.0920888597.

It can be divided in two parts, 85659 and 49872, that added together give a palindrome (135531).

The spelling of 8565949872 in words is "eight billion, five hundred sixty-five million, nine hundred forty-nine thousand, eight hundred seventy-two".