28056458224 has 20 divisors (see below), whose sum is σ = 57220408840. Its totient is φ = 13289901120.

The previous prime is 28056458201. The next prime is 28056458237. The reversal of 28056458224 is 42285465082.

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, 46145187 + ... + 46145794.

It is an arithmetic number, because the mean of its divisors is an integer number (2861020442).

Almost surely, 2^28056458224 is an apocalyptic number.

It is an amenable number.

28056458224 is an abundant number, since it is smaller than the sum of its proper divisors (29163950616).

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

28056458224 is a wasteful number, since it uses less digits than its factorization.

28056458224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92291008 (or 92291002 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 46.

The spelling of 28056458224 in words is "twenty-eight billion, fifty-six million, four hundred fifty-eight thousand, two hundred twenty-four".