85275060728 has 96 divisors (see below), whose sum is σ = 197496381600. Its totient is φ = 34223988480.

The previous prime is 85275060719. The next prime is 85275060769. The reversal of 85275060728 is 82706057258.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142118 + ... + 436746.

It is an arithmetic number, because the mean of its divisors is an integer number (2057253975).

Almost surely, 2^85275060728 is an apocalyptic number.

85275060728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85275060728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98748190800).

85275060728 is an abundant number, since it is smaller than the sum of its proper divisors (112221320872).

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

85275060728 is a wasteful number, since it uses less digits than its factorization.

85275060728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294693 (or 294678 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 85275060728 in words is "eighty-five billion, two hundred seventy-five million, sixty thousand, seven hundred twenty-eight".