28285587059 has 16 divisors (see below), whose sum is σ = 30545985600. Its totient is φ = 26111855616.

The previous prime is 28285587053. The next prime is 28285587061. The reversal of 28285587059 is 95078558282.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28285587059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28285586989 and 28285587007.

It is not an unprimeable number, because it can be changed into a prime (28285587053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1882127 + ... + 1897095.

It is an arithmetic number, because the mean of its divisors is an integer number (1909124100).

Almost surely, 2^28285587059 is an apocalyptic number.

28285587059 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28285587059 is a deficient number, since it is larger than the sum of its proper divisors (2260398541).

28285587059 is a wasteful number, since it uses less digits than its factorization.

28285587059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17854.

The product of its (nonzero) digits is 16128000, while the sum is 59.

The spelling of 28285587059 in words is "twenty-eight billion, two hundred eighty-five million, five hundred eighty-seven thousand, fifty-nine".