8170349349817 has 2 divisors, whose sum is σ = 8170349349818. Its totient is φ = 8170349349816.

The previous prime is 8170349349739. The next prime is 8170349349871. The reversal of 8170349349817 is 7189439430718.

It is a happy number.

Together with next prime (8170349349871) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4147071582096 + 4023277767721 = 2036436^2 + 2005811^2 .

It is a cyclic number.

It is not a de Polignac number, because 8170349349817 - 2¹⁵ = 8170349317049 is a prime.

It is not a weakly prime, because it can be changed into another prime (8170349349887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4085174674908 + 4085174674909.

It is an arithmetic number, because the mean of its divisors is an integer number (4085174674909).

Almost surely, 2^{8170349349817} is an apocalyptic number.

It is an amenable number.

8170349349817 is a deficient number, since it is larger than the sum of its proper divisors (1).

8170349349817 is an equidigital number, since it uses as much as digits as its factorization.

8170349349817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 8170349349817 in words is "eight trillion, one hundred seventy billion, three hundred forty-nine million, three hundred forty-nine thousand, eight hundred seventeen".