9980858880 has 400 divisors, whose sum is σ = 36124830720. Its totient is φ = 2633637888.

The previous prime is 9980858879. The next prime is 9980858911. The reversal of 9980858880 is 888580899.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26334531 + ... + 26334909.

Almost surely, 2^9980858880 is an apocalyptic number.

9980858880 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 9980858880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18062415360).

9980858880 is an abundant number, since it is smaller than the sum of its proper divisors (26143971840).

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

9980858880 is a wasteful number, since it uses less digits than its factorization.

9980858880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 516 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 63.

The square root of 9980858880 is about 99904.2485583071. The cubic root of 9980858880 is about 2153.0592022812.

The spelling of 9980858880 in words is "nine billion, nine hundred eighty million, eight hundred fifty-eight thousand, eight hundred eighty".