17191183117 has 2 divisors, whose sum is σ = 17191183118. Its totient is φ = 17191183116.

The previous prime is 17191183049. The next prime is 17191183123. The reversal of 17191183117 is 71138119171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15094825321 + 2096357796 = 122861^2 + 45786^2 .

It is a cyclic number.

It is not a de Polignac number, because 17191183117 - 2¹⁵ = 17191150349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17191183117.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17191183157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8595591558 + 8595591559.

It is an arithmetic number, because the mean of its divisors is an integer number (8595591559).

Almost surely, 2^17191183117 is an apocalyptic number.

It is an amenable number.

17191183117 is a deficient number, since it is larger than the sum of its proper divisors (1).

17191183117 is an equidigital number, since it uses as much as digits as its factorization.

17191183117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584, while the sum is 40.

The spelling of 17191183117 in words is "seventeen billion, one hundred ninety-one million, one hundred eighty-three thousand, one hundred seventeen".