8639670460 has 12 divisors (see below), whose sum is σ = 18143308008. Its totient is φ = 3455868176.

The previous prime is 8639670451. The next prime is 8639670509. The reversal of 8639670460 is 640769368.

8639670460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×8639670460² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215991742 + ... + 215991781.

It is an arithmetic number, because the mean of its divisors is an integer number (1511942334).

Almost surely, 2^8639670460 is an apocalyptic number.

It is an amenable number.

8639670460 is an abundant number, since it is smaller than the sum of its proper divisors (9503637548).

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

8639670460 is a wasteful number, since it uses less digits than its factorization.

8639670460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431983532 (or 431983530 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 8639670460 is about 92949.8276491140. The cubic root of 8639670460 is about 2051.9450474640.

The spelling of 8639670460 in words is "eight billion, six hundred thirty-nine million, six hundred seventy thousand, four hundred sixty".