16717842919 has 2 divisors, whose sum is σ = 16717842920. Its totient is φ = 16717842918.

The previous prime is 16717842917. The next prime is 16717842923. The reversal of 16717842919 is 91924871761.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (91924871761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16717842919 - 2¹ = 16717842917 is a prime.

It is a super-2 number, since 2×16717842919² (a number of 21 digits) contains 22 as substring.

Together with 16717842917, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 16717842919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16717842917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358921459 + 8358921460.

It is an arithmetic number, because the mean of its divisors is an integer number (8358921460).

Almost surely, 2^16717842919 is an apocalyptic number.

16717842919 is a deficient number, since it is larger than the sum of its proper divisors (1).

16717842919 is an equidigital number, since it uses as much as digits as its factorization.

16717842919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 55.

The spelling of 16717842919 in words is "sixteen billion, seven hundred seventeen million, eight hundred forty-two thousand, nine hundred nineteen".