28500104563 has 24 divisors (see below), whose sum is σ = 36629628192. Its totient is φ = 21992027904.

The previous prime is 28500104561. The next prime is 28500104579. The reversal of 28500104563 is 36540100582.

It is not a de Polignac number, because 28500104563 - 2¹ = 28500104561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28500104561) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 724620 + ... + 762937.

It is an arithmetic number, because the mean of its divisors is an integer number (1526234508).

Almost surely, 2^28500104563 is an apocalyptic number.

28500104563 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28500104563 is a deficient number, since it is larger than the sum of its proper divisors (8129523629).

28500104563 is a wasteful number, since it uses less digits than its factorization.

28500104563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487611 (or 1487604 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 28500104563 in words is "twenty-eight billion, five hundred million, one hundred four thousand, five hundred sixty-three".