9873580853789 has 4 divisors (see below), whose sum is σ = 9878525062524. Its totient is φ = 9868636645056.

The previous prime is 9873580853683. The next prime is 9873580853827.

9873580853789 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5342038351225 + 4531542502564 = 2311285^2 + 2128742^2 .

It is a cyclic number.

It is not a de Polignac number, because 9873580853789 - 2³⁶ = 9804861377053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9873580853989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2472101372 + ... + 2472105365.

It is an arithmetic number, because the mean of its divisors is an integer number (2469631265631).

Almost surely, 2^{9873580853789} is an apocalyptic number.

It is an amenable number.

9873580853789 is a deficient number, since it is larger than the sum of its proper divisors (4944208735).

9873580853789 is a wasteful number, since it uses less digits than its factorization.

9873580853789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944208734.

The product of its (nonzero) digits is 3657830400, while the sum is 80.

The spelling of 9873580853789 in words is "nine trillion, eight hundred seventy-three billion, five hundred eighty million, eight hundred fifty-three thousand, seven hundred eighty-nine".