28550430828 has 48 divisors (see below), whose sum is σ = 74036027520. Its totient is φ = 9514702800.

The previous prime is 28550430827. The next prime is 28550430859. The reversal of 28550430828 is 82803405582.

It is not an unprimeable number, because it can be changed into a prime (28550430827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505743 + ... + 559353.

It is an arithmetic number, because the mean of its divisors is an integer number (1542417240).

Almost surely, 2^28550430828 is an apocalyptic number.

It is an amenable number.

28550430828 is an abundant number, since it is smaller than the sum of its proper divisors (45485596692).

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

28550430828 is a wasteful number, since it uses less digits than its factorization.

28550430828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58555 (or 58547 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

The spelling of 28550430828 in words is "twenty-eight billion, five hundred fifty million, four hundred thirty thousand, eight hundred twenty-eight".