17317315873 has 24 divisors (see below), whose sum is σ = 20702095848. Its totient is φ = 14388000000.

The previous prime is 17317315859. The next prime is 17317315903. The reversal of 17317315873 is 37851371371.

It can be written as a sum of positive squares in 4 ways, for example, as 3211715584 + 14105600289 = 56672^2 + 118767^2 .

It is not a de Polignac number, because 17317315873 - 2¹³ = 17317307681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17317315843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104373 + ... + 213373.

It is an arithmetic number, because the mean of its divisors is an integer number (862587327).

Almost surely, 2^17317315873 is an apocalyptic number.

17317315873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

17317315873 is a deficient number, since it is larger than the sum of its proper divisors (3384779975).

17317315873 is a wasteful number, since it uses less digits than its factorization.

17317315873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109137 (or 109126 counting only the distinct ones).

The product of its digits is 370440, while the sum is 46.

The spelling of 17317315873 in words is "seventeen billion, three hundred seventeen million, three hundred fifteen thousand, eight hundred seventy-three".