789889376891 has 2 divisors, whose sum is σ = 789889376892. Its totient is φ = 789889376890.

The previous prime is 789889376827. The next prime is 789889376893. The reversal of 789889376891 is 198673988987.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 789889376891 - 2⁶ = 789889376827 is a prime.

Together with 789889376893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (789889376893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 394944688445 + 394944688446.

It is an arithmetic number, because the mean of its divisors is an integer number (394944688446).

Almost surely, 2^789889376891 is an apocalyptic number.

789889376891 is a deficient number, since it is larger than the sum of its proper divisors (1).

789889376891 is an equidigital number, since it uses as much as digits as its factorization.

789889376891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2633637888, while the sum is 83.

The spelling of 789889376891 in words is "seven hundred eighty-nine billion, eight hundred eighty-nine million, three hundred seventy-six thousand, eight hundred ninety-one".