28056443364 has 60 divisors (see below), whose sum is σ = 73378499964. Its totient is φ = 9347887296.

The previous prime is 28056443351. The next prime is 28056443521. The reversal of 28056443364 is 46334465082.

28056443364 is a `hidden beast` number, since 2 + 80 + 564 + 4 + 3 + 3 + 6 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12986425764 + 15070017600 = 113958^2 + 122760^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 737334 + ... + 774450.

Almost surely, 2^28056443364 is an apocalyptic number.

It is an amenable number.

28056443364 is an abundant number, since it is smaller than the sum of its proper divisors (45322056600).

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

28056443364 is a wasteful number, since it uses less digits than its factorization.

28056443364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39466 (or 39455 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 45.

The spelling of 28056443364 in words is "twenty-eight billion, fifty-six million, four hundred forty-three thousand, three hundred sixty-four".