18516852017 has 8 divisors (see below), whose sum is σ = 19580370432. Its totient is φ = 17482471200.

The previous prime is 18516852007. The next prime is 18516852073. The reversal of 18516852017 is 71025861581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18516852017 - 2⁴ = 18516852001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18516852007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7283093 + ... + 7285634.

It is an arithmetic number, because the mean of its divisors is an integer number (2447546304).

Almost surely, 2^18516852017 is an apocalyptic number.

It is an amenable number.

18516852017 is a deficient number, since it is larger than the sum of its proper divisors (1063518415).

18516852017 is a wasteful number, since it uses less digits than its factorization.

18516852017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568799.

The product of its (nonzero) digits is 134400, while the sum is 44.

The spelling of 18516852017 in words is "eighteen billion, five hundred sixteen million, eight hundred fifty-two thousand, seventeen".