9951888224 has 48 divisors (see below), whose sum is σ = 20151523728. Its totient is φ = 4834432512.

The previous prime is 9951888197. The next prime is 9951888283. The reversal of 9951888224 is 4228881599.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9951888224.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862139 + ... + 873605.

It is an arithmetic number, because the mean of its divisors is an integer number (419823411).

Almost surely, 2^9951888224 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 9951888224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10075761864).

9951888224 is an abundant number, since it is smaller than the sum of its proper divisors (10199635504).

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

9951888224 is a wasteful number, since it uses less digits than its factorization.

9951888224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12247 (or 12239 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 56.

The square root of 9951888224 is about 99759.1510789862. The cubic root of 9951888224 is about 2150.9740114636.

The spelling of 9951888224 in words is "nine billion, nine hundred fifty-one million, eight hundred eighty-eight thousand, two hundred twenty-four".