28027500002805 has 16 divisors (see below), whose sum is σ = 47204210531520. Its totient is φ = 14161263159168.

The previous prime is 28027500002797. The next prime is 28027500002833. The reversal of 28027500002805 is 50820000572082.

It is a happy number.

It is not a de Polignac number, because 28027500002805 - 2³ = 28027500002797 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49171052352 + ... + 49171052921.

It is an arithmetic number, because the mean of its divisors is an integer number (2950263158220).

Almost surely, 2^{28027500002805} is an apocalyptic number.

It is an amenable number.

28027500002805 is a deficient number, since it is larger than the sum of its proper divisors (19176710528715).

28027500002805 is a wasteful number, since it uses less digits than its factorization.

28027500002805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98342105300.

The product of its (nonzero) digits is 89600, while the sum is 39.

Adding to 28027500002805 its reverse (50820000572082), we get a palindrome (78847500574887).

The spelling of 28027500002805 in words is "twenty-eight trillion, twenty-seven billion, five hundred million, two thousand, eight hundred five".