12797754687 has 12 divisors (see below), whose sum is σ = 18587778664. Its totient is φ = 8484698160.

The previous prime is 12797754667. The next prime is 12797754709. The reversal of 12797754687 is 78645779721.

12797754687 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 7 + 7 + 546 + 87 = 666.

It is not a de Polignac number, because 12797754687 - 2⁶ = 12797754623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12797754667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3926473 + ... + 3929730.

Almost surely, 2^12797754687 is an apocalyptic number.

12797754687 is a deficient number, since it is larger than the sum of its proper divisors (5790023977).

12797754687 is a wasteful number, since it uses less digits than its factorization.

12797754687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7856390 (or 7856387 counting only the distinct ones).

The product of its digits is 41489280, while the sum is 63.

The spelling of 12797754687 in words is "twelve billion, seven hundred ninety-seven million, seven hundred fifty-four thousand, six hundred eighty-seven".