8163992718 has 24 divisors (see below), whose sum is σ = 20215601328. Its totient is φ = 2332569312.

The previous prime is 8163992717. The next prime is 8163992719. The reversal of 8163992718 is 8172993618.

It is an interprime number because it is at equal distance from previous prime (8163992717) and next prime (8163992719).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8163992717) 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 in 11 ways as a sum of consecutive naturals, for example, 32396671 + ... + 32396922.

It is an arithmetic number, because the mean of its divisors is an integer number (842316722).

Almost surely, 2^8163992718 is an apocalyptic number.

8163992718 is an abundant number, since it is smaller than the sum of its proper divisors (12051608610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8163992718 is a wasteful number, since it uses less digits than its factorization.

8163992718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64793608 (or 64793605 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 8163992718 is about 90354.8156879311. The cubic root of 8163992718 is about 2013.5737283735.

The spelling of 8163992718 in words is "eight billion, one hundred sixty-three million, nine hundred ninety-two thousand, seven hundred eighteen".