9112987800 has 288 divisors, whose sum is σ = 35059065600. Its totient is φ = 2078058240.

The previous prime is 9112987799. The next prime is 9112987813. The reversal of 9112987800 is 87892119.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9915741 + ... + 9916659.

Almost surely, 2^9112987800 is an apocalyptic number.

9112987800 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9112987800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17529532800).

9112987800 is an abundant number, since it is smaller than the sum of its proper divisors (25946077800).

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

9112987800 is a wasteful number, since it uses less digits than its factorization.

9112987800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 9112987800 is about 95461.9704384945. The cubic root of 9112987800 is about 2088.7522447000.

It can be divided in two parts, 91129 and 87800, that added together give a square (178929 = 423²).

The spelling of 9112987800 in words is "nine billion, one hundred twelve million, nine hundred eighty-seven thousand, eight hundred".