85854370128 has 80 divisors (see below), whose sum is σ = 227147336640. Its totient is φ = 27932516352.

The previous prime is 85854370127. The next prime is 85854370177. The reversal of 85854370128 is 82107345858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85854370127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 403563 + ... + 578421.

It is an arithmetic number, because the mean of its divisors is an integer number (2839341708).

Almost surely, 2^85854370128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85854370128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113573668320).

85854370128 is an abundant number, since it is smaller than the sum of its proper divisors (141292966512).

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

85854370128 is a wasteful number, since it uses less digits than its factorization.

85854370128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175116 (or 175110 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 51.

The spelling of 85854370128 in words is "eighty-five billion, eight hundred fifty-four million, three hundred seventy thousand, one hundred twenty-eight".