12886982161 has 8 divisors (see below), whose sum is σ = 13756305600. Its totient is φ = 12036764880.

The previous prime is 12886982083. The next prime is 12886982177. The reversal of 12886982161 is 16128968821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12886982161 - 2⁷ = 12886982033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12886982099 and 12886982108.

It is not an unprimeable number, because it can be changed into a prime (12886982191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4775146 + ... + 4777843.

It is an arithmetic number, because the mean of its divisors is an integer number (1719538200).

Almost surely, 2^12886982161 is an apocalyptic number.

It is an amenable number.

12886982161 is a deficient number, since it is larger than the sum of its proper divisors (869323439).

12886982161 is an equidigital number, since it uses as much as digits as its factorization.

12886982161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9553079.

The product of its digits is 663552, while the sum is 52.

The spelling of 12886982161 in words is "twelve billion, eight hundred eighty-six million, nine hundred eighty-two thousand, one hundred sixty-one".