18671672206 has 16 divisors (see below), whose sum is σ = 31130131248. Its totient is φ = 8326988800.

The previous prime is 18671672189. The next prime is 18671672231. The reversal of 18671672206 is 60227617681.

It is a happy number.

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, 8005555 + ... + 8007886.

It is an arithmetic number, because the mean of its divisors is an integer number (1945633203).

Almost surely, 2^18671672206 is an apocalyptic number.

18671672206 is a deficient number, since it is larger than the sum of its proper divisors (12458459042).

18671672206 is a wasteful number, since it uses less digits than its factorization.

18671672206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013507.

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 18671672206 in words is "eighteen billion, six hundred seventy-one million, six hundred seventy-two thousand, two hundred six".