12999626688 has 56 divisors (see below), whose sum is σ = 34419479040. Its totient is φ = 4330105600.

The previous prime is 12999626683. The next prime is 12999626699. The reversal of 12999626688 is 88662699921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999626683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252763 + ... + 299813.

Almost surely, 2^12999626688 is an apocalyptic number.

It is an amenable number.

12999626688 is an abundant number, since it is smaller than the sum of its proper divisors (21419852352).

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

12999626688 is a wasteful number, since it uses less digits than its factorization.

12999626688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48505 (or 48495 counting only the distinct ones).

The product of its digits is 40310784, while the sum is 66.

The spelling of 12999626688 in words is "twelve billion, nine hundred ninety-nine million, six hundred twenty-six thousand, six hundred eighty-eight".