818811118818 has 128 divisors (see below), whose sum is σ = 2323899002880. Its totient is φ = 207490896000.

The previous prime is 818811118813. The next prime is 818811118847.

818811118818 is nontrivially palindromic in base 10.

818811118818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

818811118818 is a strobogrammatic number because it is the same when read upside-down.

It is not an unprimeable number, because it can be changed into a prime (818811118813) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2231038 + ... + 2571993.

It is an arithmetic number, because the mean of its divisors is an integer number (18155460960).

Almost surely, 2^818811118818 is an apocalyptic number.

818811118818 is an abundant number, since it is smaller than the sum of its proper divisors (1505087884062).

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

818811118818 is a wasteful number, since it uses less digits than its factorization.

818811118818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803101 (or 4803095 counting only the distinct ones).

The product of its digits is 262144, while the sum is 54.

The spelling of 818811118818 in words is "eight hundred eighteen billion, eight hundred eleven million, one hundred eighteen thousand, eight hundred eighteen".