28814725830 has 64 divisors (see below), whose sum is σ = 76065785856. Its totient is φ = 6985378400.

The previous prime is 28814725789. The next prime is 28814725859. The reversal of 28814725830 is 3852741882.

It is a self number, because there is not a number n which added to its sum of digits gives 28814725830.

It is a congruent number.

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, 320886 + ... + 400745.

It is an arithmetic number, because the mean of its divisors is an integer number (1188527904).

Almost surely, 2^28814725830 is an apocalyptic number.

28814725830 is an abundant number, since it is smaller than the sum of its proper divisors (47251060026).

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

28814725830 is a wasteful number, since it uses less digits than its factorization.

28814725830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721674 (or 721652 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 48.

The spelling of 28814725830 in words is "twenty-eight billion, eight hundred fourteen million, seven hundred twenty-five thousand, eight hundred thirty".