12431776671 has 16 divisors (see below), whose sum is σ = 18421062400. Its totient is φ = 8286224184.

The previous prime is 12431776639. The next prime is 12431776681. The reversal of 12431776671 is 17667713421.

It is not a de Polignac number, because 12431776671 - 2⁵ = 12431776639 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 (12431776681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103830 + ... + 188796.

It is an arithmetic number, because the mean of its divisors is an integer number (1151316400).

Almost surely, 2^12431776671 is an apocalyptic number.

12431776671 is a deficient number, since it is larger than the sum of its proper divisors (5989285729).

12431776671 is an equidigital number, since it uses as much as digits as its factorization.

12431776671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90395 (or 90389 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The spelling of 12431776671 in words is "twelve billion, four hundred thirty-one million, seven hundred seventy-six thousand, six hundred seventy-one".