27282853861 has 4 divisors (see below), whose sum is σ = 27287220492. Its totient is φ = 27278487232.

The previous prime is 27282853853. The next prime is 27282853919. The reversal of 27282853861 is 16835828272.

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

It can be written as a sum of positive squares in 2 ways, for example, as 20440420900 + 6842432961 = 142970^2 + 82719^2 .

It is a cyclic number.

It is not a de Polignac number, because 27282853861 - 2³ = 27282853853 is a prime.

It is a super-2 number, since 2×27282853861² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27282853799 and 27282853808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27282853811) 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, 2173930 + ... + 2186443.

It is an arithmetic number, because the mean of its divisors is an integer number (6821805123).

Almost surely, 2^27282853861 is an apocalyptic number.

It is an amenable number.

27282853861 is a deficient number, since it is larger than the sum of its proper divisors (4366631).

27282853861 is an equidigital number, since it uses as much as digits as its factorization.

27282853861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4366630.

The product of its digits is 2580480, while the sum is 52.

The spelling of 27282853861 in words is "twenty-seven billion, two hundred eighty-two million, eight hundred fifty-three thousand, eight hundred sixty-one".