18338702017 has 4 divisors (see below), whose sum is σ = 19303896880. Its totient is φ = 17373507156.

The previous prime is 18338701981. The next prime is 18338702027. The reversal of 18338702017 is 71020783381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18338702017 - 2¹⁵ = 18338669249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18338702027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482597403 + ... + 482597440.

It is an arithmetic number, because the mean of its divisors is an integer number (4825974220).

Almost surely, 2^18338702017 is an apocalyptic number.

It is an amenable number.

18338702017 is a deficient number, since it is larger than the sum of its proper divisors (965194863).

18338702017 is an equidigital number, since it uses as much as digits as its factorization.

18338702017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965194862.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 18338702017 in words is "eighteen billion, three hundred thirty-eight million, seven hundred two thousand, seventeen".