9912182280 has 512 divisors, whose sum is σ = 40236134400. Its totient is φ = 1886515200.

The previous prime is 9912182261. The next prime is 9912182309. The reversal of 9912182280 is 822812199.

9912182280 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

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 127 ways as a sum of consecutive naturals, for example, 21501250 + ... + 21501710.

It is an arithmetic number, because the mean of its divisors is an integer number (78586200).

Almost surely, 2^9912182280 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 9912182280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20118067200).

9912182280 is an abundant number, since it is smaller than the sum of its proper divisors (30323952120).

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

9912182280 is a wasteful number, since it uses less digits than its factorization.

9912182280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 9912182280 is about 99559.9431498432. The cubic root of 9912182280 is about 2148.1095536923.

The spelling of 9912182280 in words is "nine billion, nine hundred twelve million, one hundred eighty-two thousand, two hundred eighty".