12879397417 has 2 divisors, whose sum is σ = 12879397418. Its totient is φ = 12879397416.

The previous prime is 12879397411. The next prime is 12879397457. The reversal of 12879397417 is 71479397821.

It is a happy number.

12879397417 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12366329616 + 513067801 = 111204^2 + 22651^2 .

It is a cyclic number.

It is not a de Polignac number, because 12879397417 - 2³ = 12879397409 is a prime.

It is not a weakly prime, because it can be changed into another prime (12879397411) by changing a digit.

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 as a sum of consecutive naturals, namely, 6439698708 + 6439698709.

It is an arithmetic number, because the mean of its divisors is an integer number (6439698709).

Almost surely, 2^12879397417 is an apocalyptic number.

It is an amenable number.

12879397417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12879397417 is an equidigital number, since it uses as much as digits as its factorization.

12879397417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5334336, while the sum is 58.

The spelling of 12879397417 in words is "twelve billion, eight hundred seventy-nine million, three hundred ninety-seven thousand, four hundred seventeen".