28543470755 has 4 divisors (see below), whose sum is σ = 34252164912. Its totient is φ = 22834776600.

The previous prime is 28543470749. The next prime is 28543470773. The reversal of 28543470755 is 55707434582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55707434582 = 2 ⋅27853717291.

It is not a de Polignac number, because 28543470755 - 2¹⁸ = 28543208611 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 2854347071 + ... + 2854347080.

It is an arithmetic number, because the mean of its divisors is an integer number (8563041228).

Almost surely, 2^28543470755 is an apocalyptic number.

28543470755 is a deficient number, since it is larger than the sum of its proper divisors (5708694157).

28543470755 is an equidigital number, since it uses as much as digits as its factorization.

28543470755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708694156.

The product of its (nonzero) digits is 4704000, while the sum is 50.

The spelling of 28543470755 in words is "twenty-eight billion, five hundred forty-three million, four hundred seventy thousand, seven hundred fifty-five".