9986747904 has 240 divisors, whose sum is σ = 34162896768. Its totient is φ = 2853107712.

The previous prime is 9986747899. The next prime is 9986747917. The reversal of 9986747904 is 4097476899.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865179 + ... + 876645.

Almost surely, 2^9986747904 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 9986747904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17081448384).

9986747904 is an abundant number, since it is smaller than the sum of its proper divisors (24176148864).

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

9986747904 is an equidigital number, since it uses as much as digits as its factorization.

9986747904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11507 (or 11479 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The square root of 9986747904 is about 99933.7175531862. The cubic root of 9986747904 is about 2153.4825768135.

The spelling of 9986747904 in words is "nine billion, nine hundred eighty-six million, seven hundred forty-seven thousand, nine hundred four".