18287465636 has 24 divisors (see below), whose sum is σ = 35856016896. Its totient is φ = 8087821920.

The previous prime is 18287465621. The next prime is 18287465701. The reversal of 18287465636 is 63656478281.

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, 5614916 + ... + 5618171.

It is an arithmetic number, because the mean of its divisors is an integer number (1494000704).

Almost surely, 2^18287465636 is an apocalyptic number.

It is an amenable number.

18287465636 is a deficient number, since it is larger than the sum of its proper divisors (17568551260).

18287465636 is a wasteful number, since it uses less digits than its factorization.

18287465636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233139 (or 11233137 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 56.

The spelling of 18287465636 in words is "eighteen billion, two hundred eighty-seven million, four hundred sixty-five thousand, six hundred thirty-six".