9873691316788 has 24 divisors (see below), whose sum is σ = 19249769546280. Its totient is φ = 4399947323520.

The previous prime is 9873691316773. The next prime is 9873691316947. The reversal of 9873691316788 is 8876131963789.

It can be written as a sum of positive squares in 4 ways, for example, as 40023203364 + 9833668113424 = 200058^2 + 3135868^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3273768823 + ... + 3273771838.

It is an arithmetic number, because the mean of its divisors is an integer number (802073731095).

Almost surely, 2^{9873691316788} is an apocalyptic number.

It is an amenable number.

9873691316788 is a deficient number, since it is larger than the sum of its proper divisors (9376078229492).

9873691316788 is a wasteful number, since it uses less digits than its factorization.

9873691316788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6547540707 (or 6547540705 counting only the distinct ones).

The product of its digits is 658409472, while the sum is 76.

The spelling of 9873691316788 in words is "nine trillion, eight hundred seventy-three billion, six hundred ninety-one million, three hundred sixteen thousand, seven hundred eighty-eight".