18091677308 has 12 divisors (see below), whose sum is σ = 32094140400. Its totient is φ = 8921922912.

The previous prime is 18091677281. The next prime is 18091677323. The reversal of 18091677308 is 80377619081.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30978608 + ... + 30979191.

It is an arithmetic number, because the mean of its divisors is an integer number (2674511700).

Almost surely, 2^18091677308 is an apocalyptic number.

It is an amenable number.

18091677308 is a deficient number, since it is larger than the sum of its proper divisors (14002463092).

18091677308 is a wasteful number, since it uses less digits than its factorization.

18091677308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61957876 (or 61957874 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The spelling of 18091677308 in words is "eighteen billion, ninety-one million, six hundred seventy-seven thousand, three hundred eight".