9859847952 has 80 divisors (see below), whose sum is σ = 27085855680. Its totient is φ = 3079950336.

The previous prime is 9859847923. The next prime is 9859847971. The reversal of 9859847952 is 2597489589.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164199 + ... + 216057.

It is an arithmetic number, because the mean of its divisors is an integer number (338573196).

Almost surely, 2^9859847952 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 9859847952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13542927840).

9859847952 is an abundant number, since it is smaller than the sum of its proper divisors (17226007728).

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

9859847952 is a wasteful number, since it uses less digits than its factorization.

9859847952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52120 (or 52114 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 66.

The square root of 9859847952 is about 99296.7670772820. The cubic root of 9859847952 is about 2144.3223518900.

The spelling of 9859847952 in words is "nine billion, eight hundred fifty-nine million, eight hundred forty-seven thousand, nine hundred fifty-two".