12391225995776 has 40 divisors (see below), whose sum is σ = 24807866622000. Its totient is φ = 6183196812288.

The previous prime is 12391225995773. The next prime is 12391225995901. The reversal of 12391225995776 is 67759952219321.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (12391225995773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23994626 + ... + 24505601.

It is an arithmetic number, because the mean of its divisors is an integer number (620196665550).

Almost surely, 2^{12391225995776} is an apocalyptic number.

12391225995776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12391225995776 is an abundant number, since it is smaller than the sum of its proper divisors (12416640626224).

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

12391225995776 is an frugal number, since it uses more digits than its factorization.

12391225995776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48500744 (or 48500728 counting only the distinct ones).

The product of its digits is 128595600, while the sum is 68.

The spelling of 12391225995776 in words is "twelve trillion, three hundred ninety-one billion, two hundred twenty-five million, nine hundred ninety-five thousand, seven hundred seventy-six".