9928959744 has 216 divisors, whose sum is σ = 29812116096. Its totient is φ = 2909337600.

The previous prime is 9928959721. The next prime is 9928959749. The reversal of 9928959744 is 4479598299.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9928959749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8117917 + ... + 8119139.

It is an arithmetic number, because the mean of its divisors is an integer number (138019056).

Almost surely, 2^9928959744 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 9928959744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14906058048).

9928959744 is an abundant number, since it is smaller than the sum of its proper divisors (19883156352).

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

9928959744 is a wasteful number, since it uses less digits than its factorization.

9928959744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315 (or 1270 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 66.

The square root of 9928959744 is about 99644.1656295039. The cubic root of 9928959744 is about 2149.3208414790.

The spelling of 9928959744 in words is "nine billion, nine hundred twenty-eight million, nine hundred fifty-nine thousand, seven hundred forty-four".