8118118820 has 24 divisors (see below), whose sum is σ = 19483485504. Its totient is φ = 2783354976.

The previous prime is 8118118819. The next prime is 8118118837. The reversal of 8118118820 is 288118118.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28993142 + ... + 28993421.

It is an arithmetic number, because the mean of its divisors is an integer number (811811896).

Almost surely, 2^8118118820 is an apocalyptic number.

It is an amenable number.

8118118820 is an abundant number, since it is smaller than the sum of its proper divisors (11365366684).

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

8118118820 is a wasteful number, since it uses less digits than its factorization.

8118118820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57986579 (or 57986577 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 38.

The square root of 8118118820 is about 90100.6038825490. The cubic root of 8118118820 is about 2009.7951838694.

It can be divided in two parts, 81181 and 18820, that added together give a palindrome (100001).

The spelling of 8118118820 in words is "eight billion, one hundred eighteen million, one hundred eighteen thousand, eight hundred twenty".