12382716931818 has 16 divisors (see below), whose sum is σ = 25171424583456. Its totient is φ = 4059907190640.

The previous prime is 12382716931799. The next prime is 12382716931847. The reversal of 12382716931818 is 81813961728321.

It is a super-2 number, since 2×12382716931818² (a number of 27 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 16916279596 + ... + 16916280327.

It is an arithmetic number, because the mean of its divisors is an integer number (1573214036466).

Almost surely, 2^{12382716931818} is an apocalyptic number.

12382716931818 is an abundant number, since it is smaller than the sum of its proper divisors (12788707651638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12382716931818 is a wasteful number, since it uses less digits than its factorization.

12382716931818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33832559989.

The product of its digits is 6967296, while the sum is 60.

The spelling of 12382716931818 in words is "twelve trillion, three hundred eighty-two billion, seven hundred sixteen million, nine hundred thirty-one thousand, eight hundred eighteen".