9912489216 has 144 divisors (see below), whose sum is σ = 31461771264. Its totient is φ = 2708969472.

The previous prime is 9912489163. The next prime is 9912489233. The reversal of 9912489216 is 6129842199.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83565 + ... + 163731.

Almost surely, 2^9912489216 is an apocalyptic number.

9912489216 is a gapful number since it is divisible by the number (96) 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 9912489216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15730885632).

9912489216 is an abundant number, since it is smaller than the sum of its proper divisors (21549282048).

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

9912489216 is a wasteful number, since it uses less digits than its factorization.

9912489216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80216 (or 80202 counting only the distinct ones).

The product of its digits is 559872, while the sum is 51.

The square root of 9912489216 is about 99561.4846012252. The cubic root of 9912489216 is about 2148.1317259154.

The spelling of 9912489216 in words is "nine billion, nine hundred twelve million, four hundred eighty-nine thousand, two hundred sixteen".