18508517675 has 6 divisors (see below), whose sum is σ = 22950561948. Its totient is φ = 14806814120.

The previous prime is 18508517641. The next prime is 18508517683. The reversal of 18508517675 is 57671580581.

It is not a de Polignac number, because 18508517675 - 2¹⁶ = 18508452139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370170329 + ... + 370170378.

It is an arithmetic number, because the mean of its divisors is an integer number (3825093658).

Almost surely, 2^18508517675 is an apocalyptic number.

18508517675 is a deficient number, since it is larger than the sum of its proper divisors (4442044273).

18508517675 is an equidigital number, since it uses as much as digits as its factorization.

18508517675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 740340717 (or 740340712 counting only the distinct ones).

The product of its (nonzero) digits is 2352000, while the sum is 53.

The spelling of 18508517675 in words is "eighteen billion, five hundred eight million, five hundred seventeen thousand, six hundred seventy-five".