28585832865 has 16 divisors (see below), whose sum is σ = 45739435200. Its totient is φ = 15245076672.

The previous prime is 28585832857. The next prime is 28585832881. The reversal of 28585832865 is 56823858582.

It is not a de Polignac number, because 28585832865 - 2³ = 28585832857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28585832799 and 28585832808.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 579126 + ... + 626544.

It is an arithmetic number, because the mean of its divisors is an integer number (2858714700).

Almost surely, 2^28585832865 is an apocalyptic number.

It is an amenable number.

28585832865 is a deficient number, since it is larger than the sum of its proper divisors (17153602335).

28585832865 is a wasteful number, since it uses less digits than its factorization.

28585832865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87616.

The product of its digits is 36864000, while the sum is 60.

The spelling of 28585832865 in words is "twenty-eight billion, five hundred eighty-five million, eight hundred thirty-two thousand, eight hundred sixty-five".