27042109279 has 2 divisors, whose sum is σ = 27042109280. Its totient is φ = 27042109278.

The previous prime is 27042109277. The next prime is 27042109319. The reversal of 27042109279 is 97290124072.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27042109279 - 2¹ = 27042109277 is a prime.

Together with 27042109277, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27042109273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13521054639 + 13521054640.

It is an arithmetic number, because the mean of its divisors is an integer number (13521054640).

Almost surely, 2^27042109279 is an apocalyptic number.

27042109279 is a deficient number, since it is larger than the sum of its proper divisors (1).

27042109279 is an equidigital number, since it uses as much as digits as its factorization.

27042109279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 27042109279 in words is "twenty-seven billion, forty-two million, one hundred nine thousand, two hundred seventy-nine".