18886973569328 has 20 divisors (see below), whose sum is σ = 36860617216680. Its totient is φ = 9374556223104.

The previous prime is 18886973569319. The next prime is 18886973569379. The reversal of 18886973569328 is 82396537968881.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4308157838 + ... + 4308162221.

It is an arithmetic number, because the mean of its divisors is an integer number (1843030860834).

Almost surely, 2^{18886973569328} is an apocalyptic number.

It is an amenable number.

18886973569328 is a deficient number, since it is larger than the sum of its proper divisors (17973643647352).

18886973569328 is a wasteful number, since it uses less digits than its factorization.

18886973569328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616320204 (or 8616320198 counting only the distinct ones).

The product of its digits is 7524679680, while the sum is 83.

The spelling of 18886973569328 in words is "eighteen trillion, eight hundred eighty-six billion, nine hundred seventy-three million, five hundred sixty-nine thousand, three hundred twenty-eight".