9999010000 has 200 divisors, whose sum is σ = 28016581824. Its totient is φ = 3384960000.

The previous prime is 9999009997. The next prime is 9999010057. The reversal of 9999010000 is 109999.

9999010000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (200).

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 39 ways as a sum of consecutive naturals, for example, 5809140 + ... + 5810860.

Almost surely, 2^9999010000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14008290912).

9999010000 is an abundant number, since it is smaller than the sum of its proper divisors (18017571824).

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

9999010000 is a wasteful number, since it uses less digits than its factorization.

9999010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839 (or 1818 counting only the distinct ones).

The product of its (nonzero) digits is 6561, while the sum is 37.

The square root of 9999010000 is about 99995.0498774814. The cubic root of 9999010000 is about 2154.3635913408.

Adding to 9999010000 its reverse (109999), we get a palindrome (9999119999).

The spelling of 9999010000 in words is "nine billion, nine hundred ninety-nine million, ten thousand".