17172005538353 has 2 divisors, whose sum is σ = 17172005538354. Its totient is φ = 17172005538352.

The previous prime is 17172005538349. The next prime is 17172005538407. The reversal of 17172005538353 is 35383550027171.

17172005538353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11199416981809 + 5972588556544 = 3346553^2 + 2443888^2 .

It is a cyclic number.

It is not a de Polignac number, because 17172005538353 - 2² = 17172005538349 is a prime.

It is a super-2 number, since 2×17172005538353² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17172005508353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8586002769176 + 8586002769177.

It is an arithmetic number, because the mean of its divisors is an integer number (8586002769177).

Almost surely, 2^{17172005538353} is an apocalyptic number.

It is an amenable number.

17172005538353 is a deficient number, since it is larger than the sum of its proper divisors (1).

17172005538353 is an equidigital number, since it uses as much as digits as its factorization.

17172005538353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2646000, while the sum is 50.

The spelling of 17172005538353 in words is "seventeen trillion, one hundred seventy-two billion, five million, five hundred thirty-eight thousand, three hundred fifty-three".