9933447888 has 720 divisors, whose sum is σ = 37801219456. Its totient is φ = 2368880640.

The previous prime is 9933447883. The next prime is 9933447889. The reversal of 9933447888 is 8887443399.

It is a super-2 number, since 2×9933447888² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9933447883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 162843378 + ... + 162843438.

Almost surely, 2^9933447888 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 9933447888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18900609728).

9933447888 is an abundant number, since it is smaller than the sum of its proper divisors (27867771568).

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

9933447888 is a wasteful number, since it uses less digits than its factorization.

9933447888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 146 counting only the distinct ones).

The product of its digits is 41803776, while the sum is 63.

The square root of 9933447888 is about 99666.6839420275. The cubic root of 9933447888 is about 2149.6446420439.

The spelling of 9933447888 in words is "nine billion, nine hundred thirty-three million, four hundred forty-seven thousand, eight hundred eighty-eight".