8163992719 has 2 divisors, whose sum is σ = 8163992720. Its totient is φ = 8163992718.

The previous prime is 8163992717. The next prime is 8163992743. The reversal of 8163992719 is 9172993618.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8163992719 - 2¹ = 8163992717 is a prime.

It is a super-2 number, since 2×8163992719² (a number of 21 digits) contains 22 as substring.

Together with 8163992717, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8163992719.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8163992717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4081996359 + 4081996360.

It is an arithmetic number, because the mean of its divisors is an integer number (4081996360).

Almost surely, 2^8163992719 is an apocalyptic number.

8163992719 is a deficient number, since it is larger than the sum of its proper divisors (1).

8163992719 is an equidigital number, since it uses as much as digits as its factorization.

8163992719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 55.

The square root of 8163992719 is about 90354.8156934648. The cubic root of 8163992719 is about 2013.5737284557.

The spelling of 8163992719 in words is "eight billion, one hundred sixty-three million, nine hundred ninety-two thousand, seven hundred nineteen".