2168715193 has 2 divisors, whose sum is σ = 2168715194. Its totient is φ = 2168715192.

The previous prime is 2168715187. The next prime is 2168715223. The reversal of 2168715193 is 3915178612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1711311424 + 457403769 = 41368^2 + 21387^2 .

It is a cyclic number.

It is not a de Polignac number, because 2168715193 - 2¹³ = 2168707001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2168715173) 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, 1084357596 + 1084357597.

It is an arithmetic number, because the mean of its divisors is an integer number (1084357597).

Almost surely, 2^2168715193 is an apocalyptic number.

It is an amenable number.

2168715193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2168715193 is an equidigital number, since it uses as much as digits as its factorization.

2168715193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 43.

The square root of 2168715193 is about 46569.4663164610. The cubic root of 2168715193 is about 1294.3970286136.

The spelling of 2168715193 in words is "two billion, one hundred sixty-eight million, seven hundred fifteen thousand, one hundred ninety-three".