18809792806 has 16 divisors (see below), whose sum is σ = 32995252224. Its totient is φ = 7873866504.

The previous prime is 18809792791. The next prime is 18809792831. The reversal of 18809792806 is 60829790881.

It is a congruent number.

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, 15622150 + ... + 15623353.

It is an arithmetic number, because the mean of its divisors is an integer number (2062203264).

Almost surely, 2^18809792806 is an apocalyptic number.

18809792806 is a deficient number, since it is larger than the sum of its proper divisors (14185459418).

18809792806 is a wasteful number, since it uses less digits than its factorization.

18809792806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31245555.

The product of its (nonzero) digits is 3483648, while the sum is 58.

The spelling of 18809792806 in words is "eighteen billion, eight hundred nine million, seven hundred ninety-two thousand, eight hundred six".