9999000868 has 6 divisors (see below), whose sum is σ = 17498251526. Its totient is φ = 4999500432.

The previous prime is 9999000859. The next prime is 9999000901. The reversal of 9999000868 is 8680009999.

9999000868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 8528891904 + 1470108964 = 92352^2 + 38342^2 .

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 as a sum of consecutive naturals, namely, 1249875105 + ... + 1249875112.

Almost surely, 2^9999000868 is an apocalyptic number.

It is an amenable number.

9999000868 is a deficient number, since it is larger than the sum of its proper divisors (7499250658).

9999000868 is a wasteful number, since it uses less digits than its factorization.

9999000868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499750221 (or 2499750219 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 58.

The square root of 9999000868 is about 99995.0042152107. The cubic root of 9999000868 is about 2154.3629354874.

The spelling of 9999000868 in words is "nine billion, nine hundred ninety-nine million, eight hundred sixty-eight", and thus it is an aban number.