17172531017 has 2 divisors, whose sum is σ = 17172531018. Its totient is φ = 17172531016.

The previous prime is 17172531001. The next prime is 17172531119. The reversal of 17172531017 is 71013527171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17038341961 + 134189056 = 130531^2 + 11584^2 .

It is a cyclic number.

It is not a de Polignac number, because 17172531017 - 2⁴ = 17172531001 is a prime.

It is not a weakly prime, because it can be changed into another prime (17172531617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8586265508 + 8586265509.

It is an arithmetic number, because the mean of its divisors is an integer number (8586265509).

Almost surely, 2^17172531017 is an apocalyptic number.

It is an amenable number.

17172531017 is a deficient number, since it is larger than the sum of its proper divisors (1).

17172531017 is an equidigital number, since it uses as much as digits as its factorization.

17172531017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10290, while the sum is 35.

The spelling of 17172531017 in words is "seventeen billion, one hundred seventy-two million, five hundred thirty-one thousand, seventeen".