28025275280027 has 4 divisors (see below), whose sum is σ = 28287193740696. Its totient is φ = 27763356819360.

The previous prime is 28025275279993. The next prime is 28025275280063. The reversal of 28025275280027 is 72008257252082.

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

It is not a de Polignac number, because 28025275280027 - 2¹² = 28025275275931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28025265280027) 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, 130959230174 + ... + 130959230387.

It is an arithmetic number, because the mean of its divisors is an integer number (7071798435174).

Almost surely, 2^{28025275280027} is an apocalyptic number.

28025275280027 is a deficient number, since it is larger than the sum of its proper divisors (261918460669).

28025275280027 is a wasteful number, since it uses less digits than its factorization.

28025275280027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261918460668.

The product of its (nonzero) digits is 2508800, while the sum is 50.

The spelling of 28025275280027 in words is "twenty-eight trillion, twenty-five billion, two hundred seventy-five million, two hundred eighty thousand, twenty-seven".