28545072424 has 32 divisors (see below), whose sum is σ = 58397041440. Its totient is φ = 12972945600.

The previous prime is 28545072421. The next prime is 28545072443. The reversal of 28545072424 is 42427054582.

It is not an unprimeable number, because it can be changed into a prime (28545072421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612259 + ... + 657229.

It is an arithmetic number, because the mean of its divisors is an integer number (1824907545).

Almost surely, 2^28545072424 is an apocalyptic number.

It is an amenable number.

28545072424 is an abundant number, since it is smaller than the sum of its proper divisors (29851969016).

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

28545072424 is a wasteful number, since it uses less digits than its factorization.

28545072424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52201 (or 52197 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 43.

The spelling of 28545072424 in words is "twenty-eight billion, five hundred forty-five million, seventy-two thousand, four hundred twenty-four".