28536485517 has 8 divisors (see below), whose sum is σ = 42276274880. Its totient is φ = 19024323660.

The previous prime is 28536485507. The next prime is 28536485531. The reversal of 28536485517 is 71558463582.

28536485517 is a `hidden beast` number, since 2 + 8 + 536 + 48 + 55 + 17 = 666.

It is not a de Polignac number, because 28536485517 - 2²² = 28532291213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536485507) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 528453409 + ... + 528453462.

It is an arithmetic number, because the mean of its divisors is an integer number (5284534360).

Almost surely, 2^28536485517 is an apocalyptic number.

28536485517 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28536485517 is a deficient number, since it is larger than the sum of its proper divisors (13739789363).

28536485517 is a wasteful number, since it uses less digits than its factorization.

28536485517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056906880 (or 1056906874 counting only the distinct ones).

The product of its digits is 8064000, while the sum is 54.

It can be divided in two parts, 285364 and 85517, that added together give a square (370881 = 609²).

The spelling of 28536485517 in words is "twenty-eight billion, five hundred thirty-six million, four hundred eighty-five thousand, five hundred seventeen".