12789386631 has 12 divisors (see below), whose sum is σ = 21112638352. Its totient is φ = 7308220896.

The previous prime is 12789386587. The next prime is 12789386633. The reversal of 12789386631 is 13668398721.

12789386631 is a `hidden beast` number, since 127 + 89 + 386 + 63 + 1 = 666.

It is not a de Polignac number, because 12789386631 - 2¹⁷ = 12789255559 is a prime.

It is a super-2 number, since 2×12789386631² (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 (12789386633) 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 11 ways as a sum of consecutive naturals, for example, 101503006 + ... + 101503131.

Almost surely, 2^12789386631 is an apocalyptic number.

12789386631 is a deficient number, since it is larger than the sum of its proper divisors (8323251721).

12789386631 is a wasteful number, since it uses less digits than its factorization.

12789386631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203006150 (or 203006147 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 12789386631 in words is "twelve billion, seven hundred eighty-nine million, three hundred eighty-six thousand, six hundred thirty-one".