9893857968 has 40 divisors (see below), whose sum is σ = 28399038000. Its totient is φ = 3297952512.

The previous prime is 9893857933. The next prime is 9893858017. The reversal of 9893857968 is 8697583989.

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

It is a junction number, because it is equal to n+sod(n) for n = 9893857896 and 9893857905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11450793 + ... + 11451656.

It is an arithmetic number, because the mean of its divisors is an integer number (709975950).

Almost surely, 2^9893857968 is an apocalyptic number.

It is an amenable number.

9893857968 is an abundant number, since it is smaller than the sum of its proper divisors (18505180032).

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

9893857968 is a wasteful number, since it uses less digits than its factorization.

9893857968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22902466 (or 22902454 counting only the distinct ones).

The product of its digits is 235146240, while the sum is 72.

The square root of 9893857968 is about 99467.8740498660. The cubic root of 9893857968 is about 2146.7850249586.

The spelling of 9893857968 in words is "nine billion, eight hundred ninety-three million, eight hundred fifty-seven thousand, nine hundred sixty-eight".