17319349609 has 9 divisors (see below), whose sum is σ = 17505961239. Its totient is φ = 17134710600.

The previous prime is 17319349513. The next prime is 17319349631. The reversal of 17319349609 is 90694391371.

The square root of 17319349609 is 131603.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 16640226009 + 679123600 = 128997^2 + 26060^2 .

It is a de Polignac number, because none of the positive numbers 2^k-17319349609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17319349679) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13291252 + ... + 13292554.

Almost surely, 2^17319349609 is an apocalyptic number.

17319349609 is the 131603-rd square number.

17319349609 is the 65802-nd centered octagonal number.

It is an amenable number.

17319349609 is a deficient number, since it is larger than the sum of its proper divisors (186611630).

17319349609 is an frugal number, since it uses more digits than its factorization.

17319349609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 1102248, while the sum is 52.

The spelling of 17319349609 in words is "seventeen billion, three hundred nineteen million, three hundred forty-nine thousand, six hundred nine".