85801578716 has 48 divisors (see below), whose sum is σ = 183109436160. Its totient is φ = 34359500160.

The previous prime is 85801578661. The next prime is 85801578827. The reversal of 85801578716 is 61787510858.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1065830 + ... + 1143501.

It is an arithmetic number, because the mean of its divisors is an integer number (3814779920).

Almost surely, 2^85801578716 is an apocalyptic number.

It is an amenable number.

85801578716 is an abundant number, since it is smaller than the sum of its proper divisors (97307857444).

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

85801578716 is a wasteful number, since it uses less digits than its factorization.

85801578716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209434 (or 2209432 counting only the distinct ones).

The product of its (nonzero) digits is 3763200, while the sum is 56.

The spelling of 85801578716 in words is "eighty-five billion, eight hundred one million, five hundred seventy-eight thousand, seven hundred sixteen".