28540756056 has 16 divisors (see below), whose sum is σ = 71351890200. Its totient is φ = 9513585344.

The previous prime is 28540756033. The next prime is 28540756093. The reversal of 28540756056 is 65065704582.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28540755996 and 28540756014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594599061 + ... + 594599108.

Almost surely, 2^28540756056 is an apocalyptic number.

It is an amenable number.

28540756056 is an abundant number, since it is smaller than the sum of its proper divisors (42811134144).

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

28540756056 is a wasteful number, since it uses less digits than its factorization.

28540756056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189198178 (or 1189198174 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 28540756056 in words is "twenty-eight billion, five hundred forty million, seven hundred fifty-six thousand, fifty-six".