108928432818 has 24 divisors (see below), whose sum is σ = 237514869228. Its totient is φ = 36078206112.

The previous prime is 108928432817. The next prime is 108928432819. The reversal of 108928432818 is 818234829801.

108928432818 is a `hidden beast` number, since 1 + 0 + 89 + 284 + 3 + 281 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (108928432817) and next prime (108928432819).

It can be written as a sum of positive squares in 2 ways, for example, as 103950142569 + 4978290249 = 322413^2 + 70557^2 .

It is a super-2 number, since 2×108928432818² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (108928432813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19269721 + ... + 19275372.

Almost surely, 2^108928432818 is an apocalyptic number.

108928432818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

108928432818 is an abundant number, since it is smaller than the sum of its proper divisors (128586436410).

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

108928432818 is a wasteful number, since it uses less digits than its factorization.

108928432818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38545258 (or 38545255 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 108928432818 in words is "one hundred eight billion, nine hundred twenty-eight million, four hundred thirty-two thousand, eight hundred eighteen".