28430828448 has 192 divisors, whose sum is σ = 89428147200. Its totient is φ = 7806965760.

The previous prime is 28430828423. The next prime is 28430828507. The reversal of 28430828448 is 84482803482.

It is a self number, because there is not a number n which added to its sum of digits gives 28430828448.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 430668 + ... + 492276.

It is an arithmetic number, because the mean of its divisors is an integer number (465771600).

Almost surely, 2^28430828448 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 28430828448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44714073600).

28430828448 is an abundant number, since it is smaller than the sum of its proper divisors (60997318752).

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

28430828448 is a wasteful number, since it uses less digits than its factorization.

28430828448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61675 (or 61667 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 51.

The spelling of 28430828448 in words is "twenty-eight billion, four hundred thirty million, eight hundred twenty-eight thousand, four hundred forty-eight".