9878189717804 has 12 divisors (see below), whose sum is σ = 17326940668128. Its totient is φ = 4927635241200.

The previous prime is 9878189717779. The next prime is 9878189717813. The reversal of 9878189717804 is 4087179818789.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864902487 + ... + 2864905934.

It is an arithmetic number, because the mean of its divisors is an integer number (1443911722344).

Almost surely, 2^{9878189717804} is an apocalyptic number.

It is an amenable number.

9878189717804 is a deficient number, since it is larger than the sum of its proper divisors (7448750950324).

9878189717804 is a wasteful number, since it uses less digits than its factorization.

9878189717804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5729808856 (or 5729808854 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 77.

The spelling of 9878189717804 in words is "nine trillion, eight hundred seventy-eight billion, one hundred eighty-nine million, seven hundred seventeen thousand, eight hundred four".