12281793158961 has 24 divisors (see below), whose sum is σ = 18131077096704. Its totient is φ = 8007789678720.

The previous prime is 12281793158903. The next prime is 12281793158977. The reversal of 12281793158961 is 16985139718221.

12281793158961 is a `hidden beast` number, since 1 + 2 + 2 + 8 + 17 + 9 + 31 + 589 + 6 + 1 = 666.

It is not a de Polignac number, because 12281793158961 - 2²¹ = 12281791061809 is a prime.

It is a Smith number, since the sum of its digits (63) 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 (12281793158981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10041720 + ... + 11198201.

It is an arithmetic number, because the mean of its divisors is an integer number (755461545696).

Almost surely, 2^{12281793158961} is an apocalyptic number.

It is an amenable number.

12281793158961 is a deficient number, since it is larger than the sum of its proper divisors (5849283937743).

12281793158961 is a wasteful number, since it uses less digits than its factorization.

12281793158961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21241341 (or 21241338 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The spelling of 12281793158961 in words is "twelve trillion, two hundred eighty-one billion, seven hundred ninety-three million, one hundred fifty-eight thousand, nine hundred sixty-one".