71327477227 has 2 divisors, whose sum is σ = 71327477228. Its totient is φ = 71327477226.

The previous prime is 71327477213. The next prime is 71327477239. The reversal of 71327477227 is 72277472317.

It is a strong prime.

It is an emirp because it is prime and its reverse (72277472317) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 71327477227 - 2²⁷ = 71193259499 is a prime.

It is not a weakly prime, because it can be changed into another prime (71327477267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35663738613 + 35663738614.

It is an arithmetic number, because the mean of its divisors is an integer number (35663738614).

Almost surely, 2^71327477227 is an apocalyptic number.

71327477227 is a deficient number, since it is larger than the sum of its proper divisors (1).

71327477227 is an equidigital number, since it uses as much as digits as its factorization.

71327477227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1613472, while the sum is 49.

The spelling of 71327477227 in words is "seventy-one billion, three hundred twenty-seven million, four hundred seventy-seven thousand, two hundred twenty-seven".