12879213328889 has 2 divisors, whose sum is σ = 12879213328890. Its totient is φ = 12879213328888.

The previous prime is 12879213328873. The next prime is 12879213328897. The reversal of 12879213328889 is 98882331297821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9897347460025 + 2981865868864 = 3146005^2 + 1726808^2 .

It is a cyclic number.

It is not a de Polignac number, because 12879213328889 - 2⁴ = 12879213328873 is a prime.

It is not a weakly prime, because it can be changed into another prime (12879213322889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439606664444 + 6439606664445.

It is an arithmetic number, because the mean of its divisors is an integer number (6439606664445).

Almost surely, 2^{12879213328889} is an apocalyptic number.

It is an amenable number.

12879213328889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12879213328889 is an equidigital number, since it uses as much as digits as its factorization.

12879213328889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 167215104, while the sum is 71.

The spelling of 12879213328889 in words is "twelve trillion, eight hundred seventy-nine billion, two hundred thirteen million, three hundred twenty-eight thousand, eight hundred eighty-nine".