9805395680 has 96 divisors (see below), whose sum is σ = 23846731776. Its totient is φ = 3808111104.

The previous prime is 9805395679. The next prime is 9805395703. The reversal of 9805395680 is 865935089.

It is a super-2 number, since 2×9805395680² (a number of 21 digits) contains 22 as substring.

It is a congruent 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, 949907 + ... + 960173.

It is an arithmetic number, because the mean of its divisors is an integer number (248403456).

Almost surely, 2^9805395680 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 9805395680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11923365888).

9805395680 is an abundant number, since it is smaller than the sum of its proper divisors (14041336096).

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

9805395680 is a wasteful number, since it uses less digits than its factorization.

9805395680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10456 (or 10448 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 53.

The square root of 9805395680 is about 99022.1979154169. The cubic root of 9805395680 is about 2140.3676312538.

The spelling of 9805395680 in words is "nine billion, eight hundred five million, three hundred ninety-five thousand, six hundred eighty".