12717637312 has 28 divisors (see below), whose sum is σ = 25253239816. Its totient is φ = 6354616320.

The previous prime is 12717637267. The next prime is 12717637343. The reversal of 12717637312 is 21373671721.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33088 + ... + 162880.

It is an arithmetic number, because the mean of its divisors is an integer number (901901422).

Almost surely, 2^12717637312 is an apocalyptic number.

It is an amenable number.

12717637312 is a deficient number, since it is larger than the sum of its proper divisors (12535602504).

12717637312 is a wasteful number, since it uses less digits than its factorization.

12717637312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131336 (or 131326 counting only the distinct ones).

The product of its digits is 74088, while the sum is 40.

The spelling of 12717637312 in words is "twelve billion, seven hundred seventeen million, six hundred thirty-seven thousand, three hundred twelve".