28255884535 has 32 divisors (see below), whose sum is σ = 36897291072. Its totient is φ = 20685772800.

The previous prime is 28255884511. The next prime is 28255884593. The reversal of 28255884535 is 53548855282.

It is not a de Polignac number, because 28255884535 - 2⁷ = 28255884407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7335360 + ... + 7339210.

It is an arithmetic number, because the mean of its divisors is an integer number (1153040346).

Almost surely, 2^28255884535 is an apocalyptic number.

28255884535 is a deficient number, since it is larger than the sum of its proper divisors (8641406537).

28255884535 is a wasteful number, since it uses less digits than its factorization.

28255884535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243.

The product of its digits is 15360000, while the sum is 55.

The spelling of 28255884535 in words is "twenty-eight billion, two hundred fifty-five million, eight hundred eighty-four thousand, five hundred thirty-five".