528608398085 has 8 divisors (see below), whose sum is σ = 634334034456. Its totient is φ = 422884080640.

The previous prime is 528608398069. The next prime is 528608398091. The reversal of 528608398085 is 580893806825.

It can be written as a sum of positive squares in 4 ways, for example, as 31377516769 + 497230881316 = 177137^2 + 705146^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 528608398085 - 2⁴ = 528608398069 is a prime.

It is a Duffinian number.

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, 1182557 + ... + 1567053.

It is an arithmetic number, because the mean of its divisors is an integer number (79291754307).

Almost surely, 2^528608398085 is an apocalyptic number.

It is an amenable number.

528608398085 is a deficient number, since it is larger than the sum of its proper divisors (105725636371).

528608398085 is a wasteful number, since it uses less digits than its factorization.

528608398085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659463.

The product of its (nonzero) digits is 33177600, while the sum is 62.

The spelling of 528608398085 in words is "five hundred twenty-eight billion, six hundred eight million, three hundred ninety-eight thousand, eighty-five".