6517420171 has 2 divisors, whose sum is σ = 6517420172. Its totient is φ = 6517420170.

The previous prime is 6517420141. The next prime is 6517420181. The reversal of 6517420171 is 1710247156.

6517420171 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6517420171 - 2⁷ = 6517420043 is a prime.

It is not a weakly prime, because it can be changed into another prime (6517420141) 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, 3258710085 + 3258710086.

It is an arithmetic number, because the mean of its divisors is an integer number (3258710086).

Almost surely, 2^6517420171 is an apocalyptic number.

6517420171 is a deficient number, since it is larger than the sum of its proper divisors (1).

6517420171 is an equidigital number, since it uses as much as digits as its factorization.

6517420171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 6517420171 is about 80730.5405097724. The cubic root of 6517420171 is about 1867.9212959204.

The spelling of 6517420171 in words is "six billion, five hundred seventeen million, four hundred twenty thousand, one hundred seventy-one".