27312207227 has 4 divisors (see below), whose sum is σ = 27409403976. Its totient is φ = 27215010480.

The previous prime is 27312207199. The next prime is 27312207287. The reversal of 27312207227 is 72270221372.

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

It is a cyclic number.

It is not a de Polignac number, because 27312207227 - 2²⁴ = 27295430011 is a prime.

It is a super-2 number, since 2×27312207227² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27312207287) 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, 48597953 + ... + 48598514.

It is an arithmetic number, because the mean of its divisors is an integer number (6852350994).

Almost surely, 2^27312207227 is an apocalyptic number.

27312207227 is a deficient number, since it is larger than the sum of its proper divisors (97196749).

27312207227 is an equidigital number, since it uses as much as digits as its factorization.

27312207227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97196748.

The product of its (nonzero) digits is 32928, while the sum is 35.

Adding to 27312207227 its reverse (72270221372), we get a palindrome (99582428599).

The spelling of 27312207227 in words is "twenty-seven billion, three hundred twelve million, two hundred seven thousand, two hundred twenty-seven".