28275781727323 has 4 divisors (see below), whose sum is σ = 30450841860208. Its totient is φ = 26100721594440.

The previous prime is 28275781727269. The next prime is 28275781727419. The reversal of 28275781727323 is 32372718757282.

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

It is a cyclic number.

It is not a de Polignac number, because 28275781727323 - 2³³ = 28267191792731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28275781728323) 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, 1087530066423 + ... + 1087530066448.

It is an arithmetic number, because the mean of its divisors is an integer number (7612710465052).

Almost surely, 2^{28275781727323} is an apocalyptic number.

28275781727323 is a deficient number, since it is larger than the sum of its proper divisors (2175060132885).

28275781727323 is a wasteful number, since it uses less digits than its factorization.

28275781727323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2175060132884.

The product of its digits is 110638080, while the sum is 64.

The spelling of 28275781727323 in words is "twenty-eight trillion, two hundred seventy-five billion, seven hundred eighty-one million, seven hundred twenty-seven thousand, three hundred twenty-three".