9988862976 has 154 divisors (see below), whose sum is σ = 29940498722. Its totient is φ = 3329372160.

The previous prime is 9988862971. The next prime is 9988862987. The reversal of 9988862976 is 6792688899.

It can be written as a sum of positive squares in only one way, i.e., 6737126400 + 3251736576 = 82080^2 + 57024^2 .

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988862971) by changing a digit.

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 13 ways as a sum of consecutive naturals, for example, 739806 + ... + 753186.

Almost surely, 2^9988862976 is an apocalyptic number.

9988862976 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 9988862976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14970249361).

9988862976 is an abundant number, since it is smaller than the sum of its proper divisors (19951635746).

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

9988862976 is an equidigital number, since it uses as much as digits as its factorization.

9988862976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13419 (or 13386 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 72.

The square root of 9988862976 is about 99944.2993671975. The cubic root of 9988862976 is about 2153.6345932401.

The spelling of 9988862976 in words is "nine billion, nine hundred eighty-eight million, eight hundred sixty-two thousand, nine hundred seventy-six".