9938828508 has 96 divisors (see below), whose sum is σ = 26960640000. Its totient is φ = 2790887616.

The previous prime is 9938828489. The next prime is 9938828509. The reversal of 9938828508 is 8058288399.

9938828508 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 2×9938828508² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938828509) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2806603 + ... + 2810141.

It is an arithmetic number, because the mean of its divisors is an integer number (280840000).

Almost surely, 2^9938828508 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 9938828508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13480320000).

9938828508 is an abundant number, since it is smaller than the sum of its proper divisors (17021811492).

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

9938828508 is a wasteful number, since it uses less digits than its factorization.

9938828508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4119 (or 4117 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The square root of 9938828508 is about 99693.6733599480. The cubic root of 9938828508 is about 2150.0327024411.

The spelling of 9938828508 in words is "nine billion, nine hundred thirty-eight million, eight hundred twenty-eight thousand, five hundred eight".