789169218978816 has 880 divisors, whose sum is σ = 2649182477356800. Its totient is φ = 232180735868928.

The previous prime is 789169218978787. The next prime is 789169218978919. The reversal of 789169218978816 is 618879812961987.

789169218978816 is a `hidden beast` number, since 78 + 9 + 169 + 218 + 97 + 8 + 81 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 121992456030 + ... + 121992462498.

It is an arithmetic number, because the mean of its divisors is an integer number (3010434633360).

Almost surely, 2^{789169218978816} 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 789169218978816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1324591238678400).

789169218978816 is an abundant number, since it is smaller than the sum of its proper divisors (1860013258377984).

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

789169218978816 is a wasteful number, since it uses less digits than its factorization.

789169218978816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11456 (or 11429 counting only the distinct ones).

The product of its digits is 10534551552, while the sum is 90.

The spelling of 789169218978816 in words is "seven hundred eighty-nine trillion, one hundred sixty-nine billion, two hundred eighteen million, nine hundred seventy-eight thousand, eight hundred sixteen".