27137421211 has 2 divisors, whose sum is σ = 27137421212. Its totient is φ = 27137421210.

The previous prime is 27137421191. The next prime is 27137421253. The reversal of 27137421211 is 11212473172.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 27137421211 - 2⁹ = 27137420699 is a prime.

It is not a weakly prime, because it can be changed into another prime (27137121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13568710605 + 13568710606.

It is an arithmetic number, because the mean of its divisors is an integer number (13568710606).

Almost surely, 2^27137421211 is an apocalyptic number.

27137421211 is a deficient number, since it is larger than the sum of its proper divisors (1).

27137421211 is an equidigital number, since it uses as much as digits as its factorization.

27137421211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 31.

Adding to 27137421211 its reverse (11212473172), we get a palindrome (38349894383).

The spelling of 27137421211 in words is "twenty-seven billion, one hundred thirty-seven million, four hundred twenty-one thousand, two hundred eleven".