18737383784108 has 96 divisors (see below), whose sum is σ = 38836987092288. Its totient is φ = 7812897177600.

The previous prime is 18737383784033. The next prime is 18737383784129. The reversal of 18737383784108 is 80148738373781.

It is a Harshad number since it is a multiple of its sum of digits (68).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31384316 + ... + 31975772.

It is an arithmetic number, because the mean of its divisors is an integer number (404551948878).

Almost surely, 2^{18737383784108} is an apocalyptic number.

It is an amenable number.

18737383784108 is an abundant number, since it is smaller than the sum of its proper divisors (20099603308180).

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

18737383784108 is a wasteful number, since it uses less digits than its factorization.

18737383784108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592563 (or 592561 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 68.

The spelling of 18737383784108 in words is "eighteen trillion, seven hundred thirty-seven billion, three hundred eighty-three million, seven hundred eighty-four thousand, one hundred eight".