9889699508436 has 576 divisors, whose sum is σ = 28674143447040. Its totient is φ = 2622689280000.

The previous prime is 9889699508393. The next prime is 9889699508441. The reversal of 9889699508436 is 6348059969889.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16455406536 + ... + 16455407136.

It is an arithmetic number, because the mean of its divisors is an integer number (49781499040).

Almost surely, 2^{9889699508436} 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 9889699508436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14337071723520).

9889699508436 is an abundant number, since it is smaller than the sum of its proper divisors (18784443938604).

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

9889699508436 is a wasteful number, since it uses less digits than its factorization.

9889699508436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056 (or 1037 counting only the distinct ones).

The product of its (nonzero) digits is 7255941120, while the sum is 84.

The spelling of 9889699508436 in words is "nine trillion, eight hundred eighty-nine billion, six hundred ninety-nine million, five hundred eight thousand, four hundred thirty-six".