85944393800 has 48 divisors (see below), whose sum is σ = 206266560000. Its totient is φ = 33268795200.

The previous prime is 85944393751. The next prime is 85944393811. The reversal of 85944393800 is 839344958.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6924800 + ... + 6937199.

It is an arithmetic number, because the mean of its divisors is an integer number (4297220000).

Almost surely, 2^85944393800 is an apocalyptic number.

It is an amenable number.

85944393800 is an abundant number, since it is smaller than the sum of its proper divisors (120322166200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85944393800 is a wasteful number, since it uses less digits than its factorization.

85944393800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13862046 (or 13862037 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 85944393800 in words is "eighty-five billion, nine hundred forty-four million, three hundred ninety-three thousand, eight hundred".