918868818 has 16 divisors (see below), whose sum is σ = 2100271680. Its totient is φ = 262533936.

The previous prime is 918868793. The next prime is 918868877. The reversal of 918868818 is 818868819.

918868818 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 10938873 + ... + 10938956.

It is an arithmetic number, because the mean of its divisors is an integer number (131266980).

Almost surely, 2^918868818 is an apocalyptic number.

918868818 is an abundant number, since it is smaller than the sum of its proper divisors (1181402862).

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

918868818 is a wasteful number, since it uses less digits than its factorization.

918868818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21877841.

The product of its digits is 1769472, while the sum is 57.

The square root of 918868818 is about 30312.8490577841. The cubic root of 918868818 is about 972.1900486149.

Subtracting from 918868818 its reverse (818868819), we obtain a palindrome (99999999).

The spelling of 918868818 in words is "nine hundred eighteen million, eight hundred sixty-eight thousand, eight hundred eighteen".