28225905184 has 48 divisors (see below), whose sum is σ = 55786538808. Its totient is φ = 14058012672.

The previous prime is 28225905143. The next prime is 28225905193. The reversal of 28225905184 is 48150952282.

It can be written as a sum of positive squares in 4 ways, for example, as 23707376784 + 4518528400 = 153972^2 + 67220^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11873404 + ... + 11875780.

Almost surely, 2^28225905184 is an apocalyptic number.

It is an amenable number.

28225905184 is a deficient number, since it is larger than the sum of its proper divisors (27560633624).

28225905184 is a wasteful number, since it uses less digits than its factorization.

28225905184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677 (or 3669 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 28225905184 in words is "twenty-eight billion, two hundred twenty-five million, nine hundred five thousand, one hundred eighty-four".