28753470484 has 12 divisors (see below), whose sum is σ = 50319845044. Its totient is φ = 14376371904.

The previous prime is 28753470443. The next prime is 28753470503. The reversal of 28753470484 is 48407435782.

It can be written as a sum of positive squares in 2 ways, for example, as 20342746384 + 8410724100 = 142628^2 + 91710^2 .

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, 171232 + ... + 294664.

Almost surely, 2^28753470484 is an apocalyptic number.

It is an amenable number.

28753470484 is a deficient number, since it is larger than the sum of its proper divisors (21566374560).

28753470484 is a wasteful number, since it uses less digits than its factorization.

28753470484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181674 (or 181672 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 52.

The spelling of 28753470484 in words is "twenty-eight billion, seven hundred fifty-three million, four hundred seventy thousand, four hundred eighty-four".