28582221234 has 32 divisors (see below), whose sum is σ = 65394256896. Its totient is φ = 8158415760.

The previous prime is 28582221223. The next prime is 28582221257. The reversal of 28582221234 is 43212228582.

It is a junction number, because it is equal to n+sod(n) for n = 28582221192 and 28582221201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286732 + ... + 373335.

It is an arithmetic number, because the mean of its divisors is an integer number (2043570528).

Almost surely, 2^28582221234 is an apocalyptic number.

28582221234 is an abundant number, since it is smaller than the sum of its proper divisors (36812035662).

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

28582221234 is a wasteful number, since it uses less digits than its factorization.

28582221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661110.

The product of its digits is 122880, while the sum is 39.

The spelling of 28582221234 in words is "twenty-eight billion, five hundred eighty-two million, two hundred twenty-one thousand, two hundred thirty-four".