9871799296 has 88 divisors (see below), whose sum is σ = 21085410080. Its totient is φ = 4605714432.

The previous prime is 9871799293. The next prime is 9871799297. The reversal of 9871799296 is 6929971789.

It is a Harshad number since it is a multiple of its sum of digits (67).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9871799291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1299766 + ... + 1307338.

Almost surely, 2^9871799296 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 9871799296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10542705040).

9871799296 is an abundant number, since it is smaller than the sum of its proper divisors (11213610784).

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

9871799296 is a wasteful number, since it uses less digits than its factorization.

9871799296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7679 (or 7661 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 67.

The square root of 9871799296 is about 99356.9287770108. The cubic root of 9871799296 is about 2145.1883958897.

The spelling of 9871799296 in words is "nine billion, eight hundred seventy-one million, seven hundred ninety-nine thousand, two hundred ninety-six".