28361246563 has 16 divisors (see below), whose sum is σ = 30745753920. Its totient is φ = 26160745728.

The previous prime is 28361246533. The next prime is 28361246611. The reversal of 28361246563 is 36564216382.

It is a de Polignac number, because none of the positive numbers 2^k-28361246563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28361246503) 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 15 ways as a sum of consecutive naturals, for example, 3724506 + ... + 3732112.

It is an arithmetic number, because the mean of its divisors is an integer number (1921609620).

Almost surely, 2^28361246563 is an apocalyptic number.

28361246563 is a deficient number, since it is larger than the sum of its proper divisors (2384507357).

28361246563 is an equidigital number, since it uses as much as digits as its factorization.

28361246563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9343 (or 9317 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The spelling of 28361246563 in words is "twenty-eight billion, three hundred sixty-one million, two hundred forty-six thousand, five hundred sixty-three".