28572830223 has 32 divisors (see below), whose sum is σ = 46142184960. Its totient is φ = 15353072640.

The previous prime is 28572830219. The next prime is 28572830243. The reversal of 28572830223 is 32203827582.

It is a happy number.

It is not a de Polignac number, because 28572830223 - 2² = 28572830219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28572830243) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 367608 + ... + 438498.

It is an arithmetic number, because the mean of its divisors is an integer number (1441943280).

Almost surely, 2^28572830223 is an apocalyptic number.

28572830223 is a deficient number, since it is larger than the sum of its proper divisors (17569354737).

28572830223 is a wasteful number, since it uses less digits than its factorization.

28572830223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72047.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28572830223 in words is "twenty-eight billion, five hundred seventy-two million, eight hundred thirty thousand, two hundred twenty-three".