9994457808 has 60 divisors (see below), whose sum is σ = 29006560128. Its totient is φ = 3331484640.

The previous prime is 9994457791. The next prime is 9994457821. The reversal of 9994457808 is 8087544999.

9994457808 is a `hidden beast` number, since 99 + 94 + 457 + 8 + 0 + 8 = 666.

9994457808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281408 + ... + 1289183.

Almost surely, 2^9994457808 is an apocalyptic number.

It is an amenable number.

9994457808 is an abundant number, since it is smaller than the sum of its proper divisors (19012102320).

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

9994457808 is a wasteful number, since it uses less digits than its factorization.

9994457808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570614 (or 2570596 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The square root of 9994457808 is about 99972.2851994492. The cubic root of 9994457808 is about 2154.0366067909.

The spelling of 9994457808 in words is "nine billion, nine hundred ninety-four million, four hundred fifty-seven thousand, eight hundred eight".