27838359179 has 4 divisors (see below), whose sum is σ = 27982599576. Its totient is φ = 27694118784.

The previous prime is 27838359161. The next prime is 27838359191. The reversal of 27838359179 is 97195383872.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27838359179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27838359149) 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, 72119909 + ... + 72120294.

It is an arithmetic number, because the mean of its divisors is an integer number (6995649894).

Almost surely, 2^27838359179 is an apocalyptic number.

27838359179 is a deficient number, since it is larger than the sum of its proper divisors (144240397).

27838359179 is a wasteful number, since it uses less digits than its factorization.

27838359179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144240396.

The product of its digits is 22861440, while the sum is 62.

The spelling of 27838359179 in words is "twenty-seven billion, eight hundred thirty-eight million, three hundred fifty-nine thousand, one hundred seventy-nine".