28255080075777 has 64 divisors (see below), whose sum is σ = 42872161758720. Its totient is φ = 18386476416000.

The previous prime is 28255080075763. The next prime is 28255080075811. The reversal of 28255080075777 is 77757008055282.

28255080075777 is a `hidden beast` number, since 2 + 8 + 2 + 5 + 50 + 8 + 0 + 0 + 7 + 577 + 7 = 666.

It is not a de Polignac number, because 28255080075777 - 2¹¹ = 28255080073729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28255080075707) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 460022373 + ... + 460083789.

It is an arithmetic number, because the mean of its divisors is an integer number (669877527480).

Almost surely, 2^{28255080075777} is an apocalyptic number.

28255080075777 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

28255080075777 is a deficient number, since it is larger than the sum of its proper divisors (14617081682943).

28255080075777 is a wasteful number, since it uses less digits than its factorization.

28255080075777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63911 (or 63905 counting only the distinct ones).

The product of its (nonzero) digits is 76832000, while the sum is 63.

The spelling of 28255080075777 in words is "twenty-eight trillion, two hundred fifty-five billion, eighty million, seventy-five thousand, seven hundred seventy-seven".