8318810873 has 4 divisors (see below), whose sum is σ = 8325472500. Its totient is φ = 8312149248.

The previous prime is 8318810833. The next prime is 8318810879. The reversal of 8318810873 is 3780188138.

8318810873 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4326087529 + 3992723344 = 65773^2 + 63188^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8318810873 is a prime.

It is a super-2 number, since 2×8318810873² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8318810879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3328940 + ... + 3331437.

It is an arithmetic number, because the mean of its divisors is an integer number (2081368125).

Almost surely, 2^8318810873 is an apocalyptic number.

It is an amenable number.

8318810873 is a deficient number, since it is larger than the sum of its proper divisors (6661627).

8318810873 is a wasteful number, since it uses less digits than its factorization.

8318810873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661626.

The product of its (nonzero) digits is 258048, while the sum is 47.

The square root of 8318810873 is about 91207.5154414372. The cubic root of 8318810873 is about 2026.2222665663. Note that the first 4 decimals are identical.

The spelling of 8318810873 in words is "eight billion, three hundred eighteen million, eight hundred ten thousand, eight hundred seventy-three".