8636804664 has 32 divisors (see below), whose sum is σ = 21595272720. Its totient is φ = 2878500096.

The previous prime is 8636804629. The next prime is 8636804677. The reversal of 8636804664 is 4664086368.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161892 + ... + 208524.

Almost surely, 2^8636804664 is an apocalyptic number.

It is an amenable number.

8636804664 is an abundant number, since it is smaller than the sum of its proper divisors (12958468056).

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

8636804664 is a wasteful number, since it uses less digits than its factorization.

8636804664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54359 (or 54355 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 51.

The square root of 8636804664 is about 92934.4105485153. The cubic root of 8636804664 is about 2051.7181442797.

The spelling of 8636804664 in words is "eight billion, six hundred thirty-six million, eight hundred four thousand, six hundred sixty-four".