71171215711 has 2 divisors, whose sum is σ = 71171215712. Its totient is φ = 71171215710.

The previous prime is 71171215651. The next prime is 71171215723. The reversal of 71171215711 is 11751217117.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 71171215711 - 2²⁹ = 70634344799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71171215811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35585607855 + 35585607856.

It is an arithmetic number, because the mean of its divisors is an integer number (35585607856).

Almost surely, 2^71171215711 is an apocalyptic number.

71171215711 is a deficient number, since it is larger than the sum of its proper divisors (1).

71171215711 is an equidigital number, since it uses as much as digits as its factorization.

71171215711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3430, while the sum is 34.

The spelling of 71171215711 in words is "seventy-one billion, one hundred seventy-one million, two hundred fifteen thousand, seven hundred eleven".