18837805108 has 12 divisors (see below), whose sum is σ = 33667566912. Its totient is φ = 9218500280.

The previous prime is 18837805031. The next prime is 18837805121. The reversal of 18837805108 is 80150873881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50100358 + ... + 50100733.

It is an arithmetic number, because the mean of its divisors is an integer number (2805630576).

Almost surely, 2^18837805108 is an apocalyptic number.

It is an amenable number.

18837805108 is a deficient number, since it is larger than the sum of its proper divisors (14829761804).

18837805108 is a wasteful number, since it uses less digits than its factorization.

18837805108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100201142 (or 100201140 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 49.

The spelling of 18837805108 in words is "eighteen billion, eight hundred thirty-seven million, eight hundred five thousand, one hundred eight".