28200459653 has 4 divisors (see below), whose sum is σ = 28206791340. Its totient is φ = 28194127968.

The previous prime is 28200459587. The next prime is 28200459667. The reversal of 28200459653 is 35695400282.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6721212289 + 21479247364 = 81983^2 + 146558^2 .

It is a cyclic number.

It is not a de Polignac number, because 28200459653 - 2¹⁴ = 28200443269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28200459953) 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, 3159158 + ... + 3168071.

It is an arithmetic number, because the mean of its divisors is an integer number (7051697835).

Almost surely, 2^28200459653 is an apocalyptic number.

It is an amenable number.

28200459653 is a deficient number, since it is larger than the sum of its proper divisors (6331687).

28200459653 is an equidigital number, since it uses as much as digits as its factorization.

28200459653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331686.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 28200459653 in words is "twenty-eight billion, two hundred million, four hundred fifty-nine thousand, six hundred fifty-three".