28575584830 has 32 divisors (see below), whose sum is σ = 55435512384. Its totient is φ = 10542825216.

The previous prime is 28575584827. The next prime is 28575584879. The reversal of 28575584830 is 3848557582.

It is a super-2 number, since 2×28575584830² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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, 85042 + ... + 253738.

It is an arithmetic number, because the mean of its divisors is an integer number (1732359762).

Almost surely, 2^28575584830 is an apocalyptic number.

28575584830 is a deficient number, since it is larger than the sum of its proper divisors (26859927554).

28575584830 is a wasteful number, since it uses less digits than its factorization.

28575584830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170020.

The product of its (nonzero) digits is 10752000, while the sum is 55.

The spelling of 28575584830 in words is "twenty-eight billion, five hundred seventy-five million, five hundred eighty-four thousand, eight hundred thirty".