8720988312 has 64 divisors (see below), whose sum is σ = 22564735200. Its totient is φ = 2806824960.

The previous prime is 8720988307. The next prime is 8720988323. The reversal of 8720988312 is 2138890278.

8720988312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 49764 + ... + 141132.

Almost surely, 2^8720988312 is an apocalyptic number.

8720988312 is a gapful number since it is divisible by the number (82) 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 8720988312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11282367600).

8720988312 is an abundant number, since it is smaller than the sum of its proper divisors (13843746888).

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

8720988312 is a wasteful number, since it uses less digits than its factorization.

8720988312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91516 (or 91512 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 48.

The square root of 8720988312 is about 93386.2319188434. The cubic root of 8720988312 is about 2058.3626912031.

The spelling of 8720988312 in words is "eight billion, seven hundred twenty million, nine hundred eighty-eight thousand, three hundred twelve".