27674275481 has 4 divisors (see below), whose sum is σ = 27719421732. Its totient is φ = 27629129232.

The previous prime is 27674275477. The next prime is 27674275483. The reversal of 27674275481 is 18457247672.

It is a happy number.

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 14520250000 + 13154025481 = 120500^2 + 114691^2 .

It is a cyclic number.

It is not a de Polignac number, because 27674275481 - 2² = 27674275477 is a prime.

It is a super-2 number, since 2×27674275481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (27674275483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22572206 + ... + 22573431.

It is an arithmetic number, because the mean of its divisors is an integer number (6929855433).

Almost surely, 2^27674275481 is an apocalyptic number.

It is an amenable number.

27674275481 is a deficient number, since it is larger than the sum of its proper divisors (45146251).

27674275481 is an equidigital number, since it uses as much as digits as its factorization.

27674275481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45146250.

The product of its digits is 5268480, while the sum is 53.

The spelling of 27674275481 in words is "twenty-seven billion, six hundred seventy-four million, two hundred seventy-five thousand, four hundred eighty-one".