28594705223 has 4 divisors (see below), whose sum is σ = 32679663120. Its totient is φ = 24509747328.

The previous prime is 28594705213. The next prime is 28594705229. The reversal of 28594705223 is 32250749582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28594705223 - 2⁴ = 28594705207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28594705229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042478938 + ... + 2042478951.

It is an arithmetic number, because the mean of its divisors is an integer number (8169915780).

Almost surely, 2^28594705223 is an apocalyptic number.

28594705223 is a deficient number, since it is larger than the sum of its proper divisors (4084957897).

28594705223 is an equidigital number, since it uses as much as digits as its factorization.

28594705223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4084957896.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The spelling of 28594705223 in words is "twenty-eight billion, five hundred ninety-four million, seven hundred five thousand, two hundred twenty-three".