789445544987 has 12 divisors (see below), whose sum is σ = 868106132208. Its totient is φ = 717373021200.

The previous prime is 789445544977. The next prime is 789445544989.

789445544987 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 789445544987 - 2²⁶ = 789378436123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (789445544989) 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 in 11 ways as a sum of consecutive naturals, for example, 1098839 + ... + 1669232.

It is an arithmetic number, because the mean of its divisors is an integer number (72342177684).

Almost surely, 2^789445544987 is an apocalyptic number.

789445544987 is a deficient number, since it is larger than the sum of its proper divisors (78660587221).

789445544987 is a wasteful number, since it uses less digits than its factorization.

789445544987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770450 (or 2770439 counting only the distinct ones).

The product of its digits is 1625702400, while the sum is 74.

The spelling of 789445544987 in words is "seven hundred eighty-nine billion, four hundred forty-five million, five hundred forty-four thousand, nine hundred eighty-seven".