27808361379 has 6 divisors (see below), whose sum is σ = 40167633116. Its totient is φ = 18538907580.

The previous prime is 27808361353. The next prime is 27808361387. The reversal of 27808361379 is 97316380872.

27808361379 is a `hidden beast` number, since 278 + 0 + 8 + 361 + 3 + 7 + 9 = 666.

It is not a de Polignac number, because 27808361379 - 2¹³ = 27808353187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27808361279) 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 5 ways as a sum of consecutive naturals, for example, 1544908957 + ... + 1544908974.

Almost surely, 2^27808361379 is an apocalyptic number.

27808361379 is a deficient number, since it is larger than the sum of its proper divisors (12359271737).

27808361379 is a wasteful number, since it uses less digits than its factorization.

27808361379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089817937 (or 3089817934 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 27808361379 in words is "twenty-seven billion, eight hundred eight million, three hundred sixty-one thousand, three hundred seventy-nine".