27404422105 has 4 divisors (see below), whose sum is σ = 32885306532. Its totient is φ = 21923537680.

The previous prime is 27404422103. The next prime is 27404422141. The reversal of 27404422105 is 50122440472.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4418526784 + 22985895321 = 66472^2 + 151611^2 .

It is not a de Polignac number, because 27404422105 - 2¹ = 27404422103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27404422103) 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, 2740442206 + ... + 2740442215.

It is an arithmetic number, because the mean of its divisors is an integer number (8221326633).

Almost surely, 2^27404422105 is an apocalyptic number.

It is an amenable number.

27404422105 is a deficient number, since it is larger than the sum of its proper divisors (5480884427).

27404422105 is an equidigital number, since it uses as much as digits as its factorization.

27404422105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5480884426.

The product of its (nonzero) digits is 17920, while the sum is 31.

Adding to 27404422105 its reverse (50122440472), we get a palindrome (77526862577).

The spelling of 27404422105 in words is "twenty-seven billion, four hundred four million, four hundred twenty-two thousand, one hundred five".