789989706321 has 16 divisors (see below), whose sum is σ = 1074451887936. Its totient is φ = 516116966976.

The previous prime is 789989706307. The next prime is 789989706367. The reversal of 789989706321 is 123607989987.

It is not a de Polignac number, because 789989706321 - 2⁷ = 789989706193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (789989706421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2776735 + ... + 3047988.

It is an arithmetic number, because the mean of its divisors is an integer number (67153242996).

Almost surely, 2^789989706321 is an apocalyptic number.

It is an amenable number.

789989706321 is a deficient number, since it is larger than the sum of its proper divisors (284462181615).

789989706321 is a wasteful number, since it uses less digits than its factorization.

789989706321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5825632.

The product of its (nonzero) digits is 82301184, while the sum is 69.

The spelling of 789989706321 in words is "seven hundred eighty-nine billion, nine hundred eighty-nine million, seven hundred six thousand, three hundred twenty-one".