71271744220319 has 2 divisors, whose sum is σ = 71271744220320. Its totient is φ = 71271744220318.

The previous prime is 71271744220291. The next prime is 71271744220337. The reversal of 71271744220319 is 91302244717217.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71271744220319 - 2¹² = 71271744216223 is a prime.

It is a super-2 number, since 2×71271744220319² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71271744220349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35635872110159 + 35635872110160.

It is an arithmetic number, because the mean of its divisors is an integer number (35635872110160).

Almost surely, 2^{71271744220319} is an apocalyptic number.

71271744220319 is a deficient number, since it is larger than the sum of its proper divisors (1).

71271744220319 is an equidigital number, since it uses as much as digits as its factorization.

71271744220319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 71271744220319 in words is "seventy-one trillion, two hundred seventy-one billion, seven hundred forty-four million, two hundred twenty thousand, three hundred nineteen".