12391912084 has 12 divisors (see below), whose sum is σ = 21687166900. Its totient is φ = 6195578688.

The previous prime is 12391912073. The next prime is 12391912109. The reversal of 12391912084 is 48021919321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5893939984 + 6497972100 = 76772^2 + 80610^2 .

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, 12579 + ... + 157930.

Almost surely, 2^12391912084 is an apocalyptic number.

It is an amenable number.

12391912084 is a deficient number, since it is larger than the sum of its proper divisors (9295254816).

12391912084 is a wasteful number, since it uses less digits than its factorization.

12391912084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188682 (or 188680 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The spelling of 12391912084 in words is "twelve billion, three hundred ninety-one million, nine hundred twelve thousand, eighty-four".