27245865285 has 48 divisors (see below), whose sum is σ = 47726677440. Its totient is φ = 14377466880.

The previous prime is 27245865281. The next prime is 27245865287. The reversal of 27245865285 is 58256854272.

27245865285 is a `hidden beast` number, since 2 + 7 + 2 + 4 + 586 + 52 + 8 + 5 = 666.

It is not a de Polignac number, because 27245865285 - 2² = 27245865281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27245865281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4470090 + ... + 4476180.

It is an arithmetic number, because the mean of its divisors is an integer number (994305780).

Almost surely, 2^27245865285 is an apocalyptic number.

It is an amenable number.

27245865285 is a deficient number, since it is larger than the sum of its proper divisors (20480812155).

27245865285 is a wasteful number, since it uses less digits than its factorization.

27245865285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138 (or 7135 counting only the distinct ones).

The product of its digits is 10752000, while the sum is 54.

The spelling of 27245865285 in words is "twenty-seven billion, two hundred forty-five million, eight hundred sixty-five thousand, two hundred eighty-five".