28528546685 has 32 divisors (see below), whose sum is σ = 38628928512. Its totient is φ = 20109168640.

The previous prime is 28528546667. The next prime is 28528546693. The reversal of 28528546685 is 58664582582.

It is not a de Polignac number, because 28528546685 - 2⁶ = 28528546621 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63356 + ... + 247125.

It is an arithmetic number, because the mean of its divisors is an integer number (1207154016).

Almost surely, 2^28528546685 is an apocalyptic number.

It is an amenable number.

28528546685 is a deficient number, since it is larger than the sum of its proper divisors (10100381827).

28528546685 is a wasteful number, since it uses less digits than its factorization.

28528546685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310573.

The product of its digits is 36864000, while the sum is 59.

The spelling of 28528546685 in words is "twenty-eight billion, five hundred twenty-eight million, five hundred forty-six thousand, six hundred eighty-five".