12371215872 has 40 divisors (see below), whose sum is σ = 32957696376. Its totient is φ = 4123738112.

The previous prime is 12371215861. The next prime is 12371215891. The reversal of 12371215872 is 27851217321.

It is a self number, because there is not a number n which added to its sum of digits gives 12371215872.

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, 4025553 + ... + 4028624.

Almost surely, 2^12371215872 is an apocalyptic number.

12371215872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12371215872 is an abundant number, since it is smaller than the sum of its proper divisors (20586480504).

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

12371215872 is an frugal number, since it uses more digits than its factorization.

12371215872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054198 (or 8054182 counting only the distinct ones).

The product of its digits is 47040, while the sum is 39.

The spelling of 12371215872 in words is "twelve billion, three hundred seventy-one million, two hundred fifteen thousand, eight hundred seventy-two".