28069560456 has 64 divisors (see below), whose sum is σ = 83685657600. Its totient is φ = 7671183168.

The previous prime is 28069560439. The next prime is 28069560457. The reversal of 28069560456 is 65406596082.

It is a junction number, because it is equal to n+sod(n) for n = 28069560399 and 28069560408.

It is not an unprimeable number, because it can be changed into a prime (28069560457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3628326 + ... + 3636053.

It is an arithmetic number, because the mean of its divisors is an integer number (1307588400).

Almost surely, 2^28069560456 is an apocalyptic number.

It is an amenable number.

28069560456 is an abundant number, since it is smaller than the sum of its proper divisors (55616097144).

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

28069560456 is a wasteful number, since it uses less digits than its factorization.

28069560456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7264418 (or 7264414 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 28069560456 in words is "twenty-eight billion, sixty-nine million, five hundred sixty thousand, four hundred fifty-six".