18383372005 has 16 divisors (see below), whose sum is σ = 23438134080. Its totient is φ = 13802441472.

The previous prime is 18383371999. The next prime is 18383372017. The reversal of 18383372005 is 50027338381.

It is not a de Polignac number, because 18383372005 - 2²¹ = 18381274853 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 894084 + ... + 914413.

It is an arithmetic number, because the mean of its divisors is an integer number (1464883380).

Almost surely, 2^18383372005 is an apocalyptic number.

It is an amenable number.

18383372005 is a deficient number, since it is larger than the sum of its proper divisors (5054762075).

18383372005 is a wasteful number, since it uses less digits than its factorization.

18383372005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808628.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 18383372005 in words is "eighteen billion, three hundred eighty-three million, three hundred seventy-two thousand, five".