9689850198720 has 336 divisors, whose sum is σ = 35955430187040. Its totient is φ = 2386075680768.

The previous prime is 9689850198709. The next prime is 9689850198731. The reversal of 9689850198720 is 278910589869.

9689850198720 is a `hidden beast` number, since 9 + 6 + 8 + 9 + 8 + 501 + 98 + 7 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (9689850198709) and next prime (9689850198731).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 727771 + ... + 4461989.

It is an arithmetic number, because the mean of its divisors is an integer number (107010208890).

Almost surely, 2^{9689850198720} is an apocalyptic number.

9689850198720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9689850198720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17977715093520).

9689850198720 is an abundant number, since it is smaller than the sum of its proper divisors (26265579988320).

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

9689850198720 is a wasteful number, since it uses less digits than its factorization.

9689850198720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3734312 (or 3734299 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 72.

The spelling of 9689850198720 in words is "nine trillion, six hundred eighty-nine billion, eight hundred fifty million, one hundred ninety-eight thousand, seven hundred twenty".