9987983480 has 64 divisors (see below), whose sum is σ = 24017459040. Its totient is φ = 3725012992.

The previous prime is 9987983477. The next prime is 9987983503. The reversal of 9987983480 is 843897899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4124 + ... + 141396.

Almost surely, 2^9987983480 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 9987983480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12008729520).

9987983480 is an abundant number, since it is smaller than the sum of its proper divisors (14029475560).

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

9987983480 is a wasteful number, since it uses less digits than its factorization.

9987983480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137408 (or 137404 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 65.

The square root of 9987983480 is about 99939.8993395531. The cubic root of 9987983480 is about 2153.5713838903.

The spelling of 9987983480 in words is "nine billion, nine hundred eighty-seven million, nine hundred eighty-three thousand, four hundred eighty".