18916083194 has 16 divisors (see below), whose sum is σ = 29938469280. Its totient is φ = 8938959120.

The previous prime is 18916083157. The next prime is 18916083233. The reversal of 18916083194 is 49138061981.

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, 575204 + ... + 607199.

It is an arithmetic number, because the mean of its divisors is an integer number (1871154330).

Almost surely, 2^18916083194 is an apocalyptic number.

18916083194 is a deficient number, since it is larger than the sum of its proper divisors (11022386086).

18916083194 is a wasteful number, since it uses less digits than its factorization.

18916083194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182845.

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 18916083194 in words is "eighteen billion, nine hundred sixteen million, eighty-three thousand, one hundred ninety-four".