8189999818 has 128 divisors (see below), whose sum is σ = 17498880000. Its totient is φ = 2768567040.

The previous prime is 8189999809. The next prime is 8189999819.

8189999818 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8189999819) 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 63 ways as a sum of consecutive naturals, for example, 5286508 + ... + 5288056.

It is an arithmetic number, because the mean of its divisors is an integer number (136710000).

Almost surely, 2^8189999818 is an apocalyptic number.

8189999818 is an abundant number, since it is smaller than the sum of its proper divisors (9308880182).

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

8189999818 is a wasteful number, since it uses less digits than its factorization.

8189999818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740.

The product of its digits is 26873856, while the sum is 70.

The square root of 8189999818 is about 90498.6177684499. The cubic root of 8189999818 is about 2015.7095993282.

The spelling of 8189999818 in words is "eight billion, one hundred eighty-nine million, nine hundred ninety-nine thousand, eight hundred eighteen".