16717842917 has 2 divisors, whose sum is σ = 16717842918. Its totient is φ = 16717842916.

The previous prime is 16717842907. The next prime is 16717842919. The reversal of 16717842917 is 71924871761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10889131201 + 5828711716 = 104351^2 + 76346^2 .

It is a cyclic number.

It is not a de Polignac number, because 16717842917 - 2⁴ = 16717842901 is a prime.

Together with 16717842919, 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 (16717842919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8358921458 + 8358921459.

It is an arithmetic number, because the mean of its divisors is an integer number (8358921459).

Almost surely, 2^16717842917 is an apocalyptic number.

It is an amenable number.

16717842917 is a deficient number, since it is larger than the sum of its proper divisors (1).

16717842917 is an equidigital number, since it uses as much as digits as its factorization.

16717842917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1185408, while the sum is 53.

The spelling of 16717842917 in words is "sixteen billion, seven hundred seventeen million, eight hundred forty-two thousand, nine hundred seventeen".