28539606830 has 32 divisors (see below), whose sum is σ = 61800053760. Its totient is φ = 9270007200.

The previous prime is 28539606769. The next prime is 28539606857. The reversal of 28539606830 is 3860693582.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10727846 + ... + 10730505.

It is an arithmetic number, because the mean of its divisors is an integer number (1931251680).

Almost surely, 2^28539606830 is an apocalyptic number.

28539606830 is an abundant number, since it is smaller than the sum of its proper divisors (33260446930).

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

28539606830 is a wasteful number, since it uses less digits than its factorization.

28539606830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21458384.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 28539606830 in words is "twenty-eight billion, five hundred thirty-nine million, six hundred six thousand, eight hundred thirty".