12426452631 has 6 divisors (see below), whose sum is σ = 17949320480. Its totient is φ = 8284301748.

The previous prime is 12426452491. The next prime is 12426452659. The reversal of 12426452631 is 13625462421.

12426452631 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 645 + 2 + 6 + 3 + 1 = 666.

It is not a de Polignac number, because 12426452631 - 2¹⁰ = 12426451607 is a prime.

It is a super-2 number, since 2×12426452631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12426452671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 690358471 + ... + 690358488.

Almost surely, 2^12426452631 is an apocalyptic number.

12426452631 is a deficient number, since it is larger than the sum of its proper divisors (5522867849).

12426452631 is a wasteful number, since it uses less digits than its factorization.

12426452631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380716965 (or 1380716962 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The spelling of 12426452631 in words is "twelve billion, four hundred twenty-six million, four hundred fifty-two thousand, six hundred thirty-one".