28533224756 has 12 divisors (see below), whose sum is σ = 50314313280. Its totient is φ = 14157706680.

The previous prime is 28533224723. The next prime is 28533224777. The reversal of 28533224756 is 65742233582.

It is a super-2 number, since 2×28533224756² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28533224756.

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, 27225836 + ... + 27226883.

It is an arithmetic number, because the mean of its divisors is an integer number (4192859440).

Almost surely, 2^28533224756 is an apocalyptic number.

It is an amenable number.

28533224756 is a deficient number, since it is larger than the sum of its proper divisors (21781088524).

28533224756 is a wasteful number, since it uses less digits than its factorization.

28533224756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54452854 (or 54452852 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 47.

The spelling of 28533224756 in words is "twenty-eight billion, five hundred thirty-three million, two hundred twenty-four thousand, seven hundred fifty-six".