12774791817936 has 120 divisors (see below), whose sum is σ = 36719496579584. Its totient is φ = 4142999612160.

The previous prime is 12774791817911. The next prime is 12774791817967. The reversal of 12774791817936 is 63971819747721.

It is a happy number.

12774791817936 is a `hidden beast` number, since 1 + 2 + 7 + 7 + 479 + 1 + 81 + 79 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 196288281 + ... + 196353351.

Almost surely, 2^{12774791817936} is an apocalyptic number.

12774791817936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12774791817936 is an abundant number, since it is smaller than the sum of its proper divisors (23944704761648).

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

12774791817936 is a wasteful number, since it uses less digits than its factorization.

12774791817936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101969 (or 101960 counting only the distinct ones).

The product of its digits is 224042112, while the sum is 72.

The spelling of 12774791817936 in words is "twelve trillion, seven hundred seventy-four billion, seven hundred ninety-one million, eight hundred seventeen thousand, nine hundred thirty-six".