8719918818 has 64 divisors (see below), whose sum is σ = 19232059392. Its totient is φ = 2619408960.

The previous prime is 8719918813. The next prime is 8719918849. The reversal of 8719918818 is 8188199178.

It is not an unprimeable number, because it can be changed into a prime (8719918811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 562771 + ... + 578057.

It is an arithmetic number, because the mean of its divisors is an integer number (300500928).

Almost surely, 2^8719918818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8719918818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9616029696).

8719918818 is an abundant number, since it is smaller than the sum of its proper divisors (10512140574).

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

8719918818 is a wasteful number, since it uses less digits than its factorization.

8719918818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15479.

The product of its digits is 2322432, while the sum is 60.

The square root of 8719918818 is about 93380.5055565668. The cubic root of 8719918818 is about 2058.2785456734.

The spelling of 8719918818 in words is "eight billion, seven hundred nineteen million, nine hundred eighteen thousand, eight hundred eighteen".