12688396888 has 16 divisors (see below), whose sum is σ = 24116645880. Its totient is φ = 6257291328.

The previous prime is 12688396849. The next prime is 12688396907. The reversal of 12688396888 is 88869388621.

It is a happy number.

It is a congruent number.

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, 10862770 + ... + 10863937.

Almost surely, 2^12688396888 is an apocalyptic number.

It is an amenable number.

12688396888 is a deficient number, since it is larger than the sum of its proper divisors (11428248992).

12688396888 is a wasteful number, since it uses less digits than its factorization.

12688396888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21726786 (or 21726782 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 67.

The spelling of 12688396888 in words is "twelve billion, six hundred eighty-eight million, three hundred ninety-six thousand, eight hundred eighty-eight".