12776928688 has 20 divisors (see below), whose sum is σ = 24767720568. Its totient is φ = 6385258880.

The previous prime is 12776928677. The next prime is 12776928691. The reversal of 12776928688 is 88682967721.

12776928688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167293 + ... + 231388.

Almost surely, 2^12776928688 is an apocalyptic number.

It is an amenable number.

12776928688 is a deficient number, since it is larger than the sum of its proper divisors (11990791880).

12776928688 is a wasteful number, since it uses less digits than its factorization.

12776928688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400692 (or 400686 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 64.

The spelling of 12776928688 in words is "twelve billion, seven hundred seventy-six million, nine hundred twenty-eight thousand, six hundred eighty-eight".