28473655453 has 4 divisors (see below), whose sum is σ = 30148576380. Its totient is φ = 26798734528.

The previous prime is 28473655447. The next prime is 28473655459. The reversal of 28473655453 is 35455637482.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35455637482 = 2 ⋅17727818741.

It is an interprime number because it is at equal distance from previous prime (28473655447) and next prime (28473655459).

It can be written as a sum of positive squares in 2 ways, for example, as 25483971769 + 2989683684 = 159637^2 + 54678^2 .

It is a cyclic number.

It is not a de Polignac number, because 28473655453 - 2⁵ = 28473655421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28473655453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28473655459) 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, 837460438 + ... + 837460471.

It is an arithmetic number, because the mean of its divisors is an integer number (7537144095).

Almost surely, 2^28473655453 is an apocalyptic number.

It is an amenable number.

28473655453 is a deficient number, since it is larger than the sum of its proper divisors (1674920927).

28473655453 is a wasteful number, since it uses less digits than its factorization.

28473655453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674920926.

The product of its digits is 12096000, while the sum is 52.

The spelling of 28473655453 in words is "twenty-eight billion, four hundred seventy-three million, six hundred fifty-five thousand, four hundred fifty-three".