28757282875 has 16 divisors (see below), whose sum is σ = 38000214720. Its totient is φ = 21652540800.

The previous prime is 28757282861. The next prime is 28757282929. The reversal of 28757282875 is 57828275782.

It is not a de Polignac number, because 28757282875 - 2⁷ = 28757282747 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6764295 + ... + 6768544.

It is an arithmetic number, because the mean of its divisors is an integer number (2375013420).

Almost surely, 2^28757282875 is an apocalyptic number.

28757282875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28757282875 is a deficient number, since it is larger than the sum of its proper divisors (9242931845).

28757282875 is a wasteful number, since it uses less digits than its factorization.

28757282875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13532871 (or 13532861 counting only the distinct ones).

The product of its digits is 35123200, while the sum is 61.

The spelling of 28757282875 in words is "twenty-eight billion, seven hundred fifty-seven million, two hundred eighty-two thousand, eight hundred seventy-five".