85744578808 has 32 divisors (see below), whose sum is σ = 185424069600. Its totient is φ = 36410539392.

The previous prime is 85744578781. The next prime is 85744578833. The reversal of 85744578808 is 80887544758.

It is a super-3 number, since 3×85744578808³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 85744578808.

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, 7017535 + ... + 7029742.

It is an arithmetic number, because the mean of its divisors is an integer number (5794502175).

Almost surely, 2^85744578808 is an apocalyptic number.

It is an amenable number.

85744578808 is an abundant number, since it is smaller than the sum of its proper divisors (99679490792).

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

85744578808 is a wasteful number, since it uses less digits than its factorization.

85744578808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14047399 (or 14047395 counting only the distinct ones).

The product of its (nonzero) digits is 80281600, while the sum is 64.

The spelling of 85744578808 in words is "eighty-five billion, seven hundred forty-four million, five hundred seventy-eight thousand, eight hundred eight".