12431538376749 has 12 divisors (see below), whose sum is σ = 18621728268416. Its totient is φ = 8287692251004.

The previous prime is 12431538376717. The next prime is 12431538376781. The reversal of 12431538376749 is 94767383513421.

12431538376749 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 1 + 538 + 37 + 67 + 4 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (12431538376717) and next prime (12431538376781).

It is not a de Polignac number, because 12431538376749 - 2⁵ = 12431538376717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431538356749) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 25579296829 + ... + 25579297314.

Almost surely, 2^{12431538376749} is an apocalyptic number.

It is an amenable number.

12431538376749 is a deficient number, since it is larger than the sum of its proper divisors (6190189891667).

12431538376749 is an frugal number, since it uses more digits than its factorization.

12431538376749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51158594158 (or 51158594146 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 63.

The spelling of 12431538376749 in words is "twelve trillion, four hundred thirty-one billion, five hundred thirty-eight million, three hundred seventy-six thousand, seven hundred forty-nine".