18182364965 has 8 divisors (see below), whose sum is σ = 21869230488. Its totient is φ = 14512296960.

The previous prime is 18182364947. The next prime is 18182365009. The reversal of 18182364965 is 56946328181.

It is a Cunningham number, because it is equal to 134842²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2038883716 + 16143481249 = 45154^2 + 127057^2 .

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

It is not a de Polignac number, because 18182364965 - 2⁸ = 18182364709 is a prime.

It is a Duffinian 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, 4196996 + ... + 4201325.

It is an arithmetic number, because the mean of its divisors is an integer number (2733653811).

Almost surely, 2^18182364965 is an apocalyptic number.

It is an amenable number.

18182364965 is a deficient number, since it is larger than the sum of its proper divisors (3686865523).

18182364965 is an equidigital number, since it uses as much as digits as its factorization.

18182364965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398759.

The product of its digits is 2488320, while the sum is 53.

The spelling of 18182364965 in words is "eighteen billion, one hundred eighty-two million, three hundred sixty-four thousand, nine hundred sixty-five".