170138341717 has 2 divisors, whose sum is σ = 170138341718. Its totient is φ = 170138341716.

The previous prime is 170138341679. The next prime is 170138341721. The reversal of 170138341717 is 717143831071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149731076401 + 20407265316 = 386951^2 + 142854^2 .

It is a cyclic number.

It is not a de Polignac number, because 170138341717 - 2³¹ = 167990858069 is a prime.

It is a super-3 number, since 3×170138341717³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170138341517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85069170858 + 85069170859.

It is an arithmetic number, because the mean of its divisors is an integer number (85069170859).

Almost surely, 2^170138341717 is an apocalyptic number.

It is an amenable number.

170138341717 is a deficient number, since it is larger than the sum of its proper divisors (1).

170138341717 is an equidigital number, since it uses as much as digits as its factorization.

170138341717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98784, while the sum is 43.

The spelling of 170138341717 in words is "one hundred seventy billion, one hundred thirty-eight million, three hundred forty-one thousand, seven hundred seventeen".