85812789964 has 24 divisors (see below), whose sum is σ = 170947219968. Its totient is φ = 37309908240.

The previous prime is 85812789961. The next prime is 85812790001. The reversal of 85812789964 is 46998721858.

It is a self number, because there is not a number n which added to its sum of digits gives 85812789964.

It is not an unprimeable number, because it can be changed into a prime (85812789961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42396612 + ... + 42398635.

It is an arithmetic number, because the mean of its divisors is an integer number (7122800832).

Almost surely, 2^85812789964 is an apocalyptic number.

It is an amenable number.

85812789964 is a deficient number, since it is larger than the sum of its proper divisors (85134430004).

85812789964 is a wasteful number, since it uses less digits than its factorization.

85812789964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84795285 (or 84795283 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 67.

The spelling of 85812789964 in words is "eighty-five billion, eight hundred twelve million, seven hundred eighty-nine thousand, nine hundred sixty-four".