8318999673 has 32 divisors (see below), whose sum is σ = 12670744320. Its totient is φ = 5390478720.

The previous prime is 8318999669. The next prime is 8318999681. The reversal of 8318999673 is 3769998138.

It is not a de Polignac number, because 8318999673 - 2² = 8318999669 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8318999673.

It is not an unprimeable number, because it can be changed into a prime (8318999603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1092108 + ... + 1099698.

It is an arithmetic number, because the mean of its divisors is an integer number (395960760).

Almost surely, 2^8318999673 is an apocalyptic number.

It is an amenable number.

8318999673 is a deficient number, since it is larger than the sum of its proper divisors (4351744647).

8318999673 is a wasteful number, since it uses less digits than its factorization.

8318999673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8734 (or 8728 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The square root of 8318999673 is about 91208.5504379935. The cubic root of 8318999673 is about 2026.2375951942.

The spelling of 8318999673 in words is "eight billion, three hundred eighteen million, nine hundred ninety-nine thousand, six hundred seventy-three".