918111012 has 48 divisors (see below), whose sum is σ = 2636629632. Its totient is φ = 242138880.

The previous prime is 918110981. The next prime is 918111041. The reversal of 918111012 is 210111819.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419289 + ... + 421472.

It is an arithmetic number, because the mean of its divisors is an integer number (54929784).

Almost surely, 2^918111012 is an apocalyptic number.

It is an amenable number.

918111012 is an abundant number, since it is smaller than the sum of its proper divisors (1718518620).

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

918111012 is a wasteful number, since it uses less digits than its factorization.

918111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840788 (or 840786 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 918111012 is about 30300.3467306894. The cubic root of 918111012 is about 971.9227148157.

The spelling of 918111012 in words is "nine hundred eighteen million, one hundred eleven thousand, twelve".