28025027505023 has 4 divisors (see below), whose sum is σ = 28052476112808. Its totient is φ = 27997578897240.

The previous prime is 28025027504983. The next prime is 28025027505029. The reversal of 28025027505023 is 32050572052082.

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 28025027505023 - 2¹² = 28025027500927 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 (28025027505029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13724302361 + ... + 13724304402.

It is an arithmetic number, because the mean of its divisors is an integer number (7013119028202).

Almost surely, 2^{28025027505023} is an apocalyptic number.

28025027505023 is a deficient number, since it is larger than the sum of its proper divisors (27448607785).

28025027505023 is a wasteful number, since it uses less digits than its factorization.

28025027505023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27448607784.

The product of its (nonzero) digits is 336000, while the sum is 41.

The spelling of 28025027505023 in words is "twenty-eight trillion, twenty-five billion, twenty-seven million, five hundred five thousand, twenty-three".