12431858718718 has 32 divisors (see below), whose sum is σ = 19767881903616. Its totient is φ = 5851701750048.

The previous prime is 12431858718691. The next prime is 12431858718733. The reversal of 12431858718718 is 81781785813421.

It is a super-2 number, since 2×12431858718718² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12431858718718.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5186205 + ... + 7194472.

It is an arithmetic number, because the mean of its divisors is an integer number (617746309488).

Almost surely, 2^{12431858718718} is an apocalyptic number.

12431858718718 is a deficient number, since it is larger than the sum of its proper divisors (7336023184898).

12431858718718 is a wasteful number, since it uses less digits than its factorization.

12431858718718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12381048.

The product of its digits is 24084480, while the sum is 64.

The spelling of 12431858718718 in words is "twelve trillion, four hundred thirty-one billion, eight hundred fifty-eight million, seven hundred eighteen thousand, seven hundred eighteen".