439668491807808 has 112 divisors (see below), whose sum is σ = 1292637631087360. Its totient is φ = 146545541356032.

The previous prime is 439668491807773. The next prime is 439668491807833. The reversal of 439668491807808 is 808708194866934.

439668491807808 is a `hidden beast` number, since 4 + 396 + 6 + 8 + 49 + 180 + 7 + 8 + 0 + 8 = 666.

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, 14644410 + ... + 33072582.

Almost surely, 2^{439668491807808} is an apocalyptic number.

439668491807808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

439668491807808 is an abundant number, since it is smaller than the sum of its proper divisors (852969139279552).

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

439668491807808 is a wasteful number, since it uses less digits than its factorization.

439668491807808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18442001 (or 18441985 counting only the distinct ones).

The product of its (nonzero) digits is 4013162496, while the sum is 81.

The spelling of 439668491807808 in words is "four hundred thirty-nine trillion, six hundred sixty-eight billion, four hundred ninety-one million, eight hundred seven thousand, eight hundred eight".