12797853109506 has 24 divisors (see below), whose sum is σ = 28040239962540. Its totient is φ = 4218019001856.

The previous prime is 12797853109501. The next prime is 12797853109507. The reversal of 12797853109506 is 60590135879721.

12797853109506 is a `hidden beast` number, since 1 + 2 + 7 + 9 + 7 + 8 + 531 + 0 + 95 + 0 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12601257530625 + 196595578881 = 3549825^2 + 443391^2 .

It is not an unprimeable number, because it can be changed into a prime (12797853109501) 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, 3994334575 + ... + 3994337778.

Almost surely, 2^{12797853109506} is an apocalyptic number.

12797853109506 is an abundant number, since it is smaller than the sum of its proper divisors (15242386853034).

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

12797853109506 is a wasteful number, since it uses less digits than its factorization.

12797853109506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7988672450 (or 7988672447 counting only the distinct ones).

The product of its (nonzero) digits is 28576800, while the sum is 63.

The spelling of 12797853109506 in words is "twelve trillion, seven hundred ninety-seven billion, eight hundred fifty-three million, one hundred nine thousand, five hundred six".