13216806919 has 2 divisors, whose sum is σ = 13216806920. Its totient is φ = 13216806918.

The previous prime is 13216806901. The next prime is 13216806959. The reversal of 13216806919 is 91960861231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13216806919 is a prime.

It is a super-2 number, since 2×13216806919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216806959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608403459 + 6608403460.

It is an arithmetic number, because the mean of its divisors is an integer number (6608403460).

Almost surely, 2^13216806919 is an apocalyptic number.

13216806919 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216806919 is an equidigital number, since it uses as much as digits as its factorization.

13216806919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 46.

The spelling of 13216806919 in words is "thirteen billion, two hundred sixteen million, eight hundred six thousand, nine hundred nineteen".