12911626620672 has 144 divisors (see below), whose sum is σ = 38616128130048. Its totient is φ = 3800077332480.

The previous prime is 12911626620667. The next prime is 12911626620707. The reversal of 12911626620672 is 27602662611921.

It is a happy number.

12911626620672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27884104 + ... + 28343367.

Almost surely, 2^{12911626620672} is an apocalyptic number.

12911626620672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12911626620672 is an abundant number, since it is smaller than the sum of its proper divisors (25704501509376).

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

12911626620672 is a wasteful number, since it uses less digits than its factorization.

12911626620672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56227526 (or 56227512 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 12911626620672 in words is "twelve trillion, nine hundred eleven billion, six hundred twenty-six million, six hundred twenty thousand, six hundred seventy-two".