28087659602568 has 128 divisors (see below), whose sum is σ = 81416197324800. Its totient is φ = 8955189638208.

The previous prime is 28087659602543. The next prime is 28087659602579. The reversal of 28087659602568 is 86520695678082.

28087659602568 is a `hidden beast` number, since 2 + 8 + 0 + 8 + 7 + 6 + 5 + 9 + 602 + 5 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 28087659602496 and 28087659602505.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188525721 + ... + 188674647.

It is an arithmetic number, because the mean of its divisors is an integer number (636064041600).

Almost surely, 2^{28087659602568} is an apocalyptic number.

It is an amenable number.

28087659602568 is an abundant number, since it is smaller than the sum of its proper divisors (53328537722232).

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

28087659602568 is a wasteful number, since it uses less digits than its factorization.

28087659602568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186928 (or 186918 counting only the distinct ones).

The product of its (nonzero) digits is 696729600, while the sum is 72.

The spelling of 28087659602568 in words is "twenty-eight trillion, eighty-seven billion, six hundred fifty-nine million, six hundred two thousand, five hundred sixty-eight".