18786046636804 has 24 divisors (see below), whose sum is σ = 33575274794880. Its totient is φ = 9193113513696.

The previous prime is 18786046636781. The next prime is 18786046636811. The reversal of 18786046636804 is 40863664068781.

It is a self number, because there is not a number n which added to its sum of digits gives 18786046636804.

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, 56216299 + ... + 56549485.

It is an arithmetic number, because the mean of its divisors is an integer number (1398969783120).

Almost surely, 2^{18786046636804} is an apocalyptic number.

It is an amenable number.

18786046636804 is a deficient number, since it is larger than the sum of its proper divisors (14789228158076).

18786046636804 is a wasteful number, since it uses less digits than its factorization.

18786046636804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633147 (or 633145 counting only the distinct ones).

The product of its (nonzero) digits is 222953472, while the sum is 67.

The spelling of 18786046636804 in words is "eighteen trillion, seven hundred eighty-six billion, forty-six million, six hundred thirty-six thousand, eight hundred four".