8218519884 has 72 divisors (see below), whose sum is σ = 21120634080. Its totient is φ = 2694240000.

The previous prime is 8218519853. The next prime is 8218519909. The reversal of 8218519884 is 4889158128.

It is a self number, because there is not a number n which added to its sum of digits gives 8218519884.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 541552 + ... + 556520.

It is an arithmetic number, because the mean of its divisors is an integer number (293342140).

Almost surely, 2^8218519884 is an apocalyptic number.

It is an amenable number.

8218519884 is an abundant number, since it is smaller than the sum of its proper divisors (12902114196).

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

8218519884 is a wasteful number, since it uses less digits than its factorization.

8218519884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15231 (or 15226 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 54.

The square root of 8218519884 is about 90656.0526605918. The cubic root of 8218519884 is about 2018.0466595830.

The spelling of 8218519884 in words is "eight billion, two hundred eighteen million, five hundred nineteen thousand, eight hundred eighty-four".