864918108 has 48 divisors (see below), whose sum is σ = 2244936960. Its totient is φ = 287977392.

The previous prime is 864918101. The next prime is 864918137. The reversal of 864918108 is 801819468.

864918108 is a `hidden beast` number, since 86 + 491 + 81 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864918101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102091 + ... + 110237.

It is an arithmetic number, because the mean of its divisors is an integer number (46769520).

Almost surely, 2^864918108 is an apocalyptic number.

It is an amenable number.

864918108 is an abundant number, since it is smaller than the sum of its proper divisors (1380018852).

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

864918108 is a wasteful number, since it uses less digits than its factorization.

864918108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9143 (or 9135 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 864918108 is about 29409.4901009861. The cubic root of 864918108 is about 952.7778741634. Note that the first 3 decimals are identical.

It can be divided in two parts, 86 and 4918108, that added together give a palindrome (4918194).

The spelling of 864918108 in words is "eight hundred sixty-four million, nine hundred eighteen thousand, one hundred eight".