18109036922 has 16 divisors (see below), whose sum is σ = 28927671912. Its totient is φ = 8472637440.

The previous prime is 18109036919. The next prime is 18109036961. The reversal of 18109036922 is 22963090181.

It can be written as a sum of positive squares in 4 ways, for example, as 17069683801 + 1039353121 = 130651^2 + 32239^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18109036922.

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, 1533479 + ... + 1545242.

Almost surely, 2^18109036922 is an apocalyptic number.

18109036922 is a deficient number, since it is larger than the sum of its proper divisors (10818634990).

18109036922 is a wasteful number, since it uses less digits than its factorization.

18109036922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078913.

The product of its (nonzero) digits is 46656, while the sum is 41.

The spelling of 18109036922 in words is "eighteen billion, one hundred nine million, thirty-six thousand, nine hundred twenty-two".