9988963424 has 96 divisors (see below), whose sum is σ = 21920038560. Its totient is φ = 4442214400.

The previous prime is 9988963393. The next prime is 9988963433. The reversal of 9988963424 is 4243698899.

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, 10614794 + ... + 10615734.

It is an arithmetic number, because the mean of its divisors is an integer number (228333735).

Almost surely, 2^9988963424 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 9988963424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10960019280).

9988963424 is an abundant number, since it is smaller than the sum of its proper divisors (11931075136).

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

9988963424 is a wasteful number, since it uses less digits than its factorization.

9988963424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1576 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 62.

The square root of 9988963424 is about 99944.8018858410. The cubic root of 9988963424 is about 2153.6418121986.

The spelling of 9988963424 in words is "nine billion, nine hundred eighty-eight million, nine hundred sixty-three thousand, four hundred twenty-four".