28265609793 has 8 divisors (see below), whose sum is σ = 39904390368. Its totient is φ = 17735284544.

The previous prime is 28265609773. The next prime is 28265609807. The reversal of 28265609793 is 39790656282.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28265609793 - 2¹⁷ = 28265478721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28265609773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277113771 + ... + 277113872.

It is an arithmetic number, because the mean of its divisors is an integer number (4988048796).

Almost surely, 2^28265609793 is an apocalyptic number.

It is an amenable number.

28265609793 is a deficient number, since it is larger than the sum of its proper divisors (11638780575).

28265609793 is a wasteful number, since it uses less digits than its factorization.

28265609793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554227663.

The product of its (nonzero) digits is 9797760, while the sum is 57.

The spelling of 28265609793 in words is "twenty-eight billion, two hundred sixty-five million, six hundred nine thousand, seven hundred ninety-three".