12691428592 has 10 divisors (see below), whose sum is σ = 24589642928. Its totient is φ = 6345714288.

The previous prime is 12691428553. The next prime is 12691428619. The reversal of 12691428592 is 29582419621.

It is a super-2 number, since 2×12691428592² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 396607128 + ... + 396607159.

Almost surely, 2^12691428592 is an apocalyptic number.

It is an amenable number.

12691428592 is a deficient number, since it is larger than the sum of its proper divisors (11898214336).

12691428592 is an equidigital number, since it uses as much as digits as its factorization.

12691428592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793214295 (or 793214289 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The spelling of 12691428592 in words is "twelve billion, six hundred ninety-one million, four hundred twenty-eight thousand, five hundred ninety-two".