108639878048 has 24 divisors (see below), whose sum is σ = 230337434628. Its totient is φ = 50141481984.

The previous prime is 108639878021. The next prime is 108639878111. The reversal of 108639878048 is 840878936801.

It can be written as a sum of positive squares in 2 ways, for example, as 86490104464 + 22149773584 = 294092^2 + 148828^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130576361 + ... + 130577192.

Almost surely, 2^108639878048 is an apocalyptic number.

It is an amenable number.

108639878048 is an abundant number, since it is smaller than the sum of its proper divisors (121697556580).

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

108639878048 is a wasteful number, since it uses less digits than its factorization.

108639878048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261153576 (or 261153568 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 62.

The spelling of 108639878048 in words is "one hundred eight billion, six hundred thirty-nine million, eight hundred seventy-eight thousand, forty-eight".