28255328024 has 256 divisors, whose sum is σ = 70892236800. Its totient is φ = 10238054400.

The previous prime is 28255328021. The next prime is 28255328081. The reversal of 28255328024 is 42082355282.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28255328021) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61291154 + ... + 61291614.

It is an arithmetic number, because the mean of its divisors is an integer number (276922800).

Almost surely, 2^28255328024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28255328024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35446118400).

28255328024 is an abundant number, since it is smaller than the sum of its proper divisors (42636908776).

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

28255328024 is a wasteful number, since it uses less digits than its factorization.

28255328024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 41.

The spelling of 28255328024 in words is "twenty-eight billion, two hundred fifty-five million, three hundred twenty-eight thousand, twenty-four".