28086086528 has 32 divisors (see below), whose sum is σ = 56870024520. Its totient is φ = 13812825600.

The previous prime is 28086086527. The next prime is 28086086543. The reversal of 28086086528 is 82568068082.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 28086086528.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28086086527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790738 + ... + 1806353.

Almost surely, 2^28086086528 is an apocalyptic number.

It is an amenable number.

28086086528 is an abundant number, since it is smaller than the sum of its proper divisors (28783937992).

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

28086086528 is an equidigital number, since it uses as much as digits as its factorization.

28086086528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597166 (or 3597154 counting only the distinct ones).

The product of its (nonzero) digits is 2949120, while the sum is 53.

The spelling of 28086086528 in words is "twenty-eight billion, eighty-six million, eighty-six thousand, five hundred twenty-eight".