12983621872 has 40 divisors (see below), whose sum is σ = 27964737920. Its totient is φ = 5799133440.

The previous prime is 12983621851. The next prime is 12983621881. The reversal of 12983621872 is 27812638921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000347 + ... + 1013242.

It is an arithmetic number, because the mean of its divisors is an integer number (699118448).

Almost surely, 2^12983621872 is an apocalyptic number.

It is an amenable number.

12983621872 is an abundant number, since it is smaller than the sum of its proper divisors (14981116048).

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

12983621872 is a wasteful number, since it uses less digits than its factorization.

12983621872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013641 (or 2013635 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The spelling of 12983621872 in words is "twelve billion, nine hundred eighty-three million, six hundred twenty-one thousand, eight hundred seventy-two".