28562432543 has 4 divisors (see below), whose sum is σ = 29547344040. Its totient is φ = 27577521048.

The previous prime is 28562432473. The next prime is 28562432551. The reversal of 28562432543 is 34523426582.

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 28562432543 - 2²⁰ = 28561383967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28562432494 and 28562432503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28562432573) 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 3 ways as a sum of consecutive naturals, for example, 492455705 + ... + 492455762.

It is an arithmetic number, because the mean of its divisors is an integer number (7386836010).

Almost surely, 2^28562432543 is an apocalyptic number.

28562432543 is a deficient number, since it is larger than the sum of its proper divisors (984911497).

28562432543 is an equidigital number, since it uses as much as digits as its factorization.

28562432543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984911496.

The product of its digits is 1382400, while the sum is 44.

The spelling of 28562432543 in words is "twenty-eight billion, five hundred sixty-two million, four hundred thirty-two thousand, five hundred forty-three".