85392389856 has 48 divisors (see below), whose sum is σ = 229622229648. Its totient is φ = 27769881600.

The previous prime is 85392389839. The next prime is 85392389867. The reversal of 85392389856 is 65898329358.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10843675 + ... + 10851546.

It is an arithmetic number, because the mean of its divisors is an integer number (4783796451).

Almost surely, 2^85392389856 is an apocalyptic number.

It is an amenable number.

85392389856 is an abundant number, since it is smaller than the sum of its proper divisors (144229839792).

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

85392389856 is a wasteful number, since it uses less digits than its factorization.

85392389856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21695275 (or 21695267 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 66.

The spelling of 85392389856 in words is "eighty-five billion, three hundred ninety-two million, three hundred eighty-nine thousand, eight hundred fifty-six".