28575247488 has 32 divisors (see below), whose sum is σ = 75903002160. Its totient is φ = 9525082368.

The previous prime is 28575247457. The next prime is 28575247499. The reversal of 28575247488 is 88474257582.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37206970 + ... + 37207737.

Almost surely, 2^28575247488 is an apocalyptic number.

It is an amenable number.

28575247488 is an abundant number, since it is smaller than the sum of its proper divisors (47327754672).

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

28575247488 is an equidigital number, since it uses as much as digits as its factorization.

28575247488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74414724 (or 74414712 counting only the distinct ones).

The product of its digits is 40140800, while the sum is 60.

The spelling of 28575247488 in words is "twenty-eight billion, five hundred seventy-five million, two hundred forty-seven thousand, four hundred eighty-eight".