8068561871 has 2 divisors, whose sum is σ = 8068561872. Its totient is φ = 8068561870.

The previous prime is 8068561849. The next prime is 8068561903. The reversal of 8068561871 is 1781658608.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8068561871 - 2⁶ = 8068561807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8068561771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034280935 + 4034280936.

It is an arithmetic number, because the mean of its divisors is an integer number (4034280936).

Almost surely, 2^8068561871 is an apocalyptic number.

8068561871 is a deficient number, since it is larger than the sum of its proper divisors (1).

8068561871 is an equidigital number, since it uses as much as digits as its factorization.

8068561871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 645120, while the sum is 50.

The square root of 8068561871 is about 89825.1739269120. The cubic root of 8068561871 is about 2005.6972445419.

The spelling of 8068561871 in words is "eight billion, sixty-eight million, five hundred sixty-one thousand, eight hundred seventy-one".