28574428573 has 4 divisors (see below), whose sum is σ = 28702565248. Its totient is φ = 28446291900.

The previous prime is 28574428559. The next prime is 28574428577. The reversal of 28574428573 is 37582447582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28574428573 - 2⁹ = 28574428061 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 (28574428577) 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, 64068003 + ... + 64068448.

It is an arithmetic number, because the mean of its divisors is an integer number (7175641312).

Almost surely, 2^28574428573 is an apocalyptic number.

It is an amenable number.

28574428573 is a deficient number, since it is larger than the sum of its proper divisors (128136675).

28574428573 is a wasteful number, since it uses less digits than its factorization.

28574428573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128136674.

The product of its digits is 15052800, while the sum is 55.

The spelling of 28574428573 in words is "twenty-eight billion, five hundred seventy-four million, four hundred twenty-eight thousand, five hundred seventy-three".