9986299520 has 64 divisors (see below), whose sum is σ = 23973753600. Its totient is φ = 3977745408.

The previous prime is 9986299493. The next prime is 9986299529. The reversal of 9986299520 is 259926899.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 9986299520.

It is not an unprimeable number, because it can be changed into a prime (9986299529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120317 + ... + 185603.

It is an arithmetic number, because the mean of its divisors is an integer number (374589900).

Almost surely, 2^9986299520 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 9986299520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11986876800).

9986299520 is an abundant number, since it is smaller than the sum of its proper divisors (13987454080).

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

9986299520 is a wasteful number, since it uses less digits than its factorization.

9986299520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65545 (or 65533 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 59.

The square root of 9986299520 is about 99931.4741210195. The cubic root of 9986299520 is about 2153.4503473833.

The spelling of 9986299520 in words is "nine billion, nine hundred eighty-six million, two hundred ninety-nine thousand, five hundred twenty".