9989996008 has 16 divisors (see below), whose sum is σ = 19833080580. Its totient is φ = 4701174528.

The previous prime is 9989995993. The next prime is 9989996017. The reversal of 9989996008 is 8006999899.

It can be written as a sum of positive squares in 2 ways, for example, as 9988403364 + 1592644 = 99942^2 + 1262^2 .

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, 36727791 + ... + 36728062.

Almost surely, 2^9989996008 is an apocalyptic number.

It is an amenable number.

9989996008 is a deficient number, since it is larger than the sum of its proper divisors (9843084572).

9989996008 is a wasteful number, since it uses less digits than its factorization.

9989996008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73455876 (or 73455872 counting only the distinct ones).

The product of its (nonzero) digits is 22674816, while the sum is 67.

The square root of 9989996008 is about 99949.9675237566. The cubic root of 9989996008 is about 2153.7160187457.

The spelling of 9989996008 in words is "nine billion, nine hundred eighty-nine million, nine hundred ninety-six thousand, eight".