27613256327 has 4 divisors (see below), whose sum is σ = 27734900856. Its totient is φ = 27491611800.

The previous prime is 27613256311. The next prime is 27613256351. The reversal of 27613256327 is 72365231672.

It is a happy number.

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 27613256327 - 2⁴ = 27613256311 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 (27613256387) 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, 60821924 + ... + 60822377.

It is an arithmetic number, because the mean of its divisors is an integer number (6933725214).

Almost surely, 2^27613256327 is an apocalyptic number.

27613256327 is a deficient number, since it is larger than the sum of its proper divisors (121644529).

27613256327 is a wasteful number, since it uses less digits than its factorization.

27613256327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121644528.

The product of its digits is 635040, while the sum is 44.

Adding to 27613256327 its reverse (72365231672), we get a palindrome (99978487999).

The spelling of 27613256327 in words is "twenty-seven billion, six hundred thirteen million, two hundred fifty-six thousand, three hundred twenty-seven".