9109980000 has 720 divisors, whose sum is σ = 36474774336. Its totient is φ = 2136960000.

The previous prime is 9109979999. The next prime is 9109980023. The reversal of 9109980000 is 899019.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 85139947 + ... + 85140053.

Almost surely, 2^9109980000 is an apocalyptic number.

9109980000 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 9109980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18237387168).

9109980000 is an abundant number, since it is smaller than the sum of its proper divisors (27364794336).

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

9109980000 is a wasteful number, since it uses less digits than its factorization.

9109980000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 9109980000 is about 95446.2152209295. The cubic root of 9109980000 is about 2088.5224173932.

The spelling of 9109980000 in words is "nine billion, one hundred nine million, nine hundred eighty thousand".