789889376865 has 16 divisors (see below), whose sum is σ = 1263859429248. Its totient is φ = 421262192256.

The previous prime is 789889376827. The next prime is 789889376891. The reversal of 789889376865 is 568673988987.

It is a happy number.

789889376865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 789889376865 - 2²⁵ = 789855822433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208212 + ... + 1274021.

It is an arithmetic number, because the mean of its divisors is an integer number (78991214328).

Almost surely, 2^789889376865 is an apocalyptic number.

It is an amenable number.

789889376865 is a deficient number, since it is larger than the sum of its proper divisors (473970052383).

789889376865 is a wasteful number, since it uses less digits than its factorization.

789889376865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517768.

The product of its digits is 8778792960, while the sum is 84.

The spelling of 789889376865 in words is "seven hundred eighty-nine billion, eight hundred eighty-nine million, three hundred seventy-six thousand, eight hundred sixty-five".