28322504885 has 8 divisors (see below), whose sum is σ = 34905573816. Its totient is φ = 22045625280.

The previous prime is 28322504857. The next prime is 28322504893. The reversal of 28322504885 is 58840522382.

It can be written as a sum of positive squares in 4 ways, for example, as 3653718916 + 24668785969 = 60446^2 + 157063^2 .

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

It is not a de Polignac number, because 28322504885 - 2⁸ = 28322504629 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, 76547126 + ... + 76547495.

It is an arithmetic number, because the mean of its divisors is an integer number (4363196727).

Almost surely, 2^28322504885 is an apocalyptic number.

It is an amenable number.

28322504885 is a deficient number, since it is larger than the sum of its proper divisors (6583068931).

28322504885 is a wasteful number, since it uses less digits than its factorization.

28322504885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153094663.

The product of its (nonzero) digits is 1228800, while the sum is 47.

The spelling of 28322504885 in words is "twenty-eight billion, three hundred twenty-two million, five hundred four thousand, eight hundred eighty-five".