17137912717 has 4 divisors (see below), whose sum is σ = 17199782716. Its totient is φ = 17076042720.

The previous prime is 17137912709. The next prime is 17137912739. The reversal of 17137912717 is 71721973171.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11796349321 + 5341563396 = 108611^2 + 73086^2 .

It is a cyclic number.

It is not a de Polignac number, because 17137912717 - 2³ = 17137912709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17137912117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30934584 + ... + 30935137.

It is an arithmetic number, because the mean of its divisors is an integer number (4299945679).

Almost surely, 2^17137912717 is an apocalyptic number.

It is an amenable number.

17137912717 is a deficient number, since it is larger than the sum of its proper divisors (61869999).

17137912717 is an equidigital number, since it uses as much as digits as its factorization.

17137912717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61869998.

The product of its digits is 129654, while the sum is 46.

The spelling of 17137912717 in words is "seventeen billion, one hundred thirty-seven million, nine hundred twelve thousand, seven hundred seventeen".