12961918886 has 8 divisors (see below), whose sum is σ = 22220432400. Its totient is φ = 5555108088.

The previous prime is 12961918873. The next prime is 12961918891. The reversal of 12961918886 is 68881916921.

12961918886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×12961918886² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462925661 + ... + 462925688.

It is an arithmetic number, because the mean of its divisors is an integer number (2777554050).

Almost surely, 2^12961918886 is an apocalyptic number.

12961918886 is a deficient number, since it is larger than the sum of its proper divisors (9258513514).

12961918886 is an equidigital number, since it uses as much as digits as its factorization.

12961918886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925851358.

The product of its digits is 2985984, while the sum is 59.

The spelling of 12961918886 in words is "twelve billion, nine hundred sixty-one million, nine hundred eighteen thousand, eight hundred eighty-six".