28586684587128 has 32 divisors (see below), whose sum is σ = 71467101484800. Its totient is φ = 9528842860128.

The previous prime is 28586684587063. The next prime is 28586684587157. The reversal of 28586684587128 is 82178548668582.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1373475 + ... + 7685037.

It is an arithmetic number, because the mean of its divisors is an integer number (2233346921400).

Almost surely, 2^{28586684587128} is an apocalyptic number.

It is an amenable number.

28586684587128 is an abundant number, since it is smaller than the sum of its proper divisors (42880416897672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28586684587128 is a wasteful number, since it uses less digits than its factorization.

28586684587128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500291 (or 6500287 counting only the distinct ones).

The product of its digits is 3303014400, while the sum is 78.

The spelling of 28586684587128 in words is "twenty-eight trillion, five hundred eighty-six billion, six hundred eighty-four million, five hundred eighty-seven thousand, one hundred twenty-eight".