12391914116736 has 1728 divisors, whose sum is σ = 49264740626400. Its totient is φ = 2948211302400.

The previous prime is 12391914116731. The next prime is 12391914116741. The reversal of 12391914116736 is 63761141919321.

It is a happy number.

12391914116736 is a `hidden beast` number, since 1 + 2 + 3 + 9 + 191 + 411 + 6 + 7 + 36 = 666.

It is an interprime number because it is at equal distance from previous prime (12391914116731) and next prime (12391914116741).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12391914116731) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 11337523806 + ... + 11337524898.

Almost surely, 2^{12391914116736} is an apocalyptic number.

12391914116736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12391914116736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24632370313200).

12391914116736 is an abundant number, since it is smaller than the sum of its proper divisors (36872826509664).

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

12391914116736 is a wasteful number, since it uses less digits than its factorization.

12391914116736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1166 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The spelling of 12391914116736 in words is "twelve trillion, three hundred ninety-one billion, nine hundred fourteen million, one hundred sixteen thousand, seven hundred thirty-six".