28630312830 has 192 divisors, whose sum is σ = 93444848640. Its totient is φ = 5930039808.

The previous prime is 28630312757. The next prime is 28630312831. The reversal of 28630312830 is 3821303682.

28630312830 is a `hidden beast` number, since 2 + 8 + 630 + 3 + 12 + 8 + 3 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28630312831) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 223314 + ... + 327306.

It is an arithmetic number, because the mean of its divisors is an integer number (486691920).

Almost surely, 2^28630312830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28630312830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46722424320).

28630312830 is an abundant number, since it is smaller than the sum of its proper divisors (64814535810).

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

28630312830 is a wasteful number, since it uses less digits than its factorization.

28630312830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104055 (or 104052 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 28630312830 in words is "twenty-eight billion, six hundred thirty million, three hundred twelve thousand, eight hundred thirty".