28585874446 has 8 divisors (see below), whose sum is σ = 43049644344. Its totient is φ = 14235993000.

The previous prime is 28585874353. The next prime is 28585874453. The reversal of 28585874446 is 64447858582.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28471485 + ... + 28472488.

It is an arithmetic number, because the mean of its divisors is an integer number (5381205543).

Almost surely, 2^28585874446 is an apocalyptic number.

28585874446 is a deficient number, since it is larger than the sum of its proper divisors (14463769898).

28585874446 is a wasteful number, since it uses less digits than its factorization.

28585874446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56944226.

The product of its digits is 68812800, while the sum is 61.

The spelling of 28585874446 in words is "twenty-eight billion, five hundred eighty-five million, eight hundred seventy-four thousand, four hundred forty-six".