8168323399 has 2 divisors, whose sum is σ = 8168323400. Its totient is φ = 8168323398.

The previous prime is 8168323391. The next prime is 8168323403. The reversal of 8168323399 is 9933238618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8168323399 - 2³ = 8168323391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8168323391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4084161699 + 4084161700.

It is an arithmetic number, because the mean of its divisors is an integer number (4084161700).

Almost surely, 2^8168323399 is an apocalyptic number.

8168323399 is a deficient number, since it is larger than the sum of its proper divisors (1).

8168323399 is an equidigital number, since it uses as much as digits as its factorization.

8168323399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1679616, while the sum is 52.

The square root of 8168323399 is about 90378.7773705752. Note that the first 3 decimals coincide. The cubic root of 8168323399 is about 2013.9297063181.

The spelling of 8168323399 in words is "eight billion, one hundred sixty-eight million, three hundred twenty-three thousand, three hundred ninety-nine".