12913828793161 has 4 divisors (see below), whose sum is σ = 13673465781012. Its totient is φ = 12154191805312.

The previous prime is 12913828793113. The next prime is 12913828793189. The reversal of 12913828793161 is 16139782831921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7570422073600 + 5343406719561 = 2751440^2 + 2311581^2 .

It is a de Polignac number, because none of the positive numbers 2^k-12913828793161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12913828793161.

It is not an unprimeable number, because it can be changed into a prime (12913828793111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 379818493900 + ... + 379818493933.

It is an arithmetic number, because the mean of its divisors is an integer number (3418366445253).

Almost surely, 2^{12913828793161} is an apocalyptic number.

It is an amenable number.

12913828793161 is a deficient number, since it is larger than the sum of its proper divisors (759636987851).

12913828793161 is an equidigital number, since it uses as much as digits as its factorization.

12913828793161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759636987850.

The product of its digits is 7838208, while the sum is 61.

The spelling of 12913828793161 in words is "twelve trillion, nine hundred thirteen billion, eight hundred twenty-eight million, seven hundred ninety-three thousand, one hundred sixty-one".