12691429632904 has 32 divisors (see below), whose sum is σ = 25961963508000. Its totient is φ = 5768338078720.

The previous prime is 12691429632859. The next prime is 12691429632953. The reversal of 12691429632904 is 40923692419621.

12691429632904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12691429632904² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5134297 + ... + 7193320.

It is an arithmetic number, because the mean of its divisors is an integer number (811311359625).

Almost surely, 2^{12691429632904} is an apocalyptic number.

It is an amenable number.

12691429632904 is an abundant number, since it is smaller than the sum of its proper divisors (13270533875096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12691429632904 is a wasteful number, since it uses less digits than its factorization.

12691429632904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12339333 (or 12339329 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 58.

The spelling of 12691429632904 in words is "twelve trillion, six hundred ninety-one billion, four hundred twenty-nine million, six hundred thirty-two thousand, nine hundred four".