27147877439 has 16 divisors (see below), whose sum is σ = 29037655008. Its totient is φ = 25291241472.

The previous prime is 27147877397. The next prime is 27147877457. The reversal of 27147877439 is 93477874172.

It is a cyclic number.

It is not a de Polignac number, because 27147877439 - 2¹⁶ = 27147811903 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 (27147877489) 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 15 ways as a sum of consecutive naturals, for example, 1502849 + ... + 1520805.

It is an arithmetic number, because the mean of its divisors is an integer number (1814853438).

Almost surely, 2^27147877439 is an apocalyptic number.

27147877439 is a deficient number, since it is larger than the sum of its proper divisors (1889777569).

27147877439 is a wasteful number, since it uses less digits than its factorization.

27147877439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18874.

The product of its digits is 16595712, while the sum is 59.

The spelling of 27147877439 in words is "twenty-seven billion, one hundred forty-seven million, eight hundred seventy-seven thousand, four hundred thirty-nine".