9985115900 has 36 divisors (see below), whose sum is σ = 21672180600. Its totient is φ = 3993220800.

The previous prime is 9985115893. The next prime is 9985115911. The reversal of 9985115900 is 95115899.

9985115900 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, 767651 + ... + 780549.

Almost surely, 2^9985115900 is an apocalyptic number.

It is an amenable number.

9985115900 is an abundant number, since it is smaller than the sum of its proper divisors (11687064700).

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

9985115900 is a wasteful number, since it uses less digits than its factorization.

9985115900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20654 (or 20647 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 47.

The square root of 9985115900 is about 99925.5517873181. The cubic root of 9985115900 is about 2153.3652652297.

The spelling of 9985115900 in words is "nine billion, nine hundred eighty-five million, one hundred fifteen thousand, nine hundred".