28627811085285 has 80 divisors (see below), whose sum is σ = 53251044105600. Its totient is φ = 14703048097920.

The previous prime is 28627811085253. The next prime is 28627811085311. The reversal of 28627811085285 is 58258011872682.

28627811085285 is a `hidden beast` number, since 2 + 8 + 6 + 27 + 81 + 1 + 0 + 8 + 528 + 5 = 666.

It is not a de Polignac number, because 28627811085285 - 2⁵ = 28627811085253 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 10340010 + ... + 12812939.

It is an arithmetic number, because the mean of its divisors is an integer number (665638051320).

Almost surely, 2^{28627811085285} is an apocalyptic number.

It is an amenable number.

28627811085285 is a deficient number, since it is larger than the sum of its proper divisors (24623233020315).

28627811085285 is a wasteful number, since it uses less digits than its factorization.

28627811085285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23153080 (or 23153071 counting only the distinct ones).

The product of its (nonzero) digits is 34406400, while the sum is 63.

The spelling of 28627811085285 in words is "twenty-eight trillion, six hundred twenty-seven billion, eight hundred eleven million, eighty-five thousand, two hundred eighty-five".