28574744328 has 128 divisors (see below), whose sum is σ = 89979120000. Its totient is φ = 8329464576.

The previous prime is 28574744323. The next prime is 28574744329. The reversal of 28574744328 is 82344747582.

28574744328 is a `hidden beast` number, since 2 + 8 + 574 + 7 + 4 + 43 + 28 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (28574744323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214443 + ... + 321146.

It is an arithmetic number, because the mean of its divisors is an integer number (702961875).

Almost surely, 2^28574744328 is an apocalyptic number.

It is an amenable number.

28574744328 is an abundant number, since it is smaller than the sum of its proper divisors (61404375672).

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

28574744328 is a wasteful number, since it uses less digits than its factorization.

28574744328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535636 (or 535626 counting only the distinct ones).

The product of its digits is 12042240, while the sum is 54.

The spelling of 28574744328 in words is "twenty-eight billion, five hundred seventy-four million, seven hundred forty-four thousand, three hundred twenty-eight".