28324825875 has 64 divisors (see below), whose sum is σ = 52782612480. Its totient is φ = 14987397600.

The previous prime is 28324825819. The next prime is 28324825889. The reversal of 28324825875 is 57852842382.

28324825875 is a `hidden beast` number, since 2 + 83 + 2 + 482 + 5 + 87 + 5 = 666.

It is not a de Polignac number, because 28324825875 - 2⁸ = 28324825619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 395584 + ... + 461666.

It is an arithmetic number, because the mean of its divisors is an integer number (824728320).

Almost surely, 2^28324825875 is an apocalyptic number.

28324825875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28324825875 is a deficient number, since it is larger than the sum of its proper divisors (24457786605).

28324825875 is a wasteful number, since it uses less digits than its factorization.

28324825875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66234 (or 66218 counting only the distinct ones).

The product of its digits is 8601600, while the sum is 54.

The spelling of 28324825875 in words is "twenty-eight billion, three hundred twenty-four million, eight hundred twenty-five thousand, eight hundred seventy-five".