918986868 has 72 divisors (see below), whose sum is σ = 2347450560. Its totient is φ = 303125760.

The previous prime is 918986857. The next prime is 918986869. The reversal of 918986868 is 868689819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918986869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2559673 + ... + 2560031.

It is an arithmetic number, because the mean of its divisors is an integer number (32603480).

Almost surely, 2^918986868 is an apocalyptic number.

It is an amenable number.

918986868 is an abundant number, since it is smaller than the sum of its proper divisors (1428463692).

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

918986868 is a wasteful number, since it uses less digits than its factorization.

918986868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 912 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 63.

The square root of 918986868 is about 30314.7961893198. The cubic root of 918986868 is about 972.2316802814.

The spelling of 918986868 in words is "nine hundred eighteen million, nine hundred eighty-six thousand, eight hundred sixty-eight".