9987280716 has 24 divisors (see below), whose sum is σ = 26632748800. Its totient is φ = 2853508752.

The previous prime is 9987280703. The next prime is 9987280741. The reversal of 9987280716 is 6170827899.

9987280716 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9987280716² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 59448016 + ... + 59448183.

Almost surely, 2^9987280716 is an apocalyptic number.

It is an amenable number.

9987280716 is an abundant number, since it is smaller than the sum of its proper divisors (16645468084).

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

9987280716 is a wasteful number, since it uses less digits than its factorization.

9987280716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118896213 (or 118896211 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 9987280716 is about 99936.3833446058. The cubic root of 9987280716 is about 2153.5208735965.

It can be divided in two parts, 9987 and 280716, that added together give a triangular number (290703 = T₇₆₂).

The spelling of 9987280716 in words is "nine billion, nine hundred eighty-seven million, two hundred eighty thousand, seven hundred sixteen".