28287202855 has 16 divisors (see below), whose sum is σ = 35481968064. Its totient is φ = 21608294400.

The previous prime is 28287202847. The next prime is 28287202873. The reversal of 28287202855 is 55820278282.

It is not a de Polignac number, because 28287202855 - 2³ = 28287202847 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28287202799 and 28287202808.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 146796 + ... + 279505.

It is an arithmetic number, because the mean of its divisors is an integer number (2217623004).

Almost surely, 2^28287202855 is an apocalyptic number.

28287202855 is a deficient number, since it is larger than the sum of its proper divisors (7194765209).

28287202855 is a wasteful number, since it uses less digits than its factorization.

28287202855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426906.

The product of its (nonzero) digits is 1433600, while the sum is 49.

The spelling of 28287202855 in words is "twenty-eight billion, two hundred eighty-seven million, two hundred two thousand, eight hundred fifty-five".