13216418879 has 2 divisors, whose sum is σ = 13216418880. Its totient is φ = 13216418878.

The previous prime is 13216418869. The next prime is 13216418881. The reversal of 13216418879 is 97881461231.

It is a happy number.

13216418879 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13216418879 - 2⁴ = 13216418863 is a prime.

It is a Sophie Germain prime.

Together with 13216418881, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216418869) 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, 6608209439 + 6608209440.

It is an arithmetic number, because the mean of its divisors is an integer number (6608209440).

Almost surely, 2^13216418879 is an apocalyptic number.

13216418879 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216418879 is an equidigital number, since it uses as much as digits as its factorization.

13216418879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 50.

The spelling of 13216418879 in words is "thirteen billion, two hundred sixteen million, four hundred eighteen thousand, eight hundred seventy-nine".