18108020098 has 32 divisors (see below), whose sum is σ = 31167452160. Its totient is φ = 7729365840.

The previous prime is 18108020089. The next prime is 18108020149. The reversal of 18108020098 is 89002080181.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3867723 + ... + 3872401.

It is an arithmetic number, because the mean of its divisors is an integer number (973982880).

Almost surely, 2^18108020098 is an apocalyptic number.

18108020098 is a deficient number, since it is larger than the sum of its proper divisors (13059432062).

18108020098 is a wasteful number, since it uses less digits than its factorization.

18108020098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5742.

The product of its (nonzero) digits is 9216, while the sum is 37.

The spelling of 18108020098 in words is "eighteen billion, one hundred eight million, twenty thousand, ninety-eight".