71313134542717 has 2 divisors, whose sum is σ = 71313134542718. Its totient is φ = 71313134542716.

The previous prime is 71313134542681. The next prime is 71313134542759. The reversal of 71313134542717 is 71724543131317.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45139330653561 + 26173803889156 = 6718581^2 + 5116034^2 .

It is a cyclic number.

It is not a de Polignac number, because 71313134542717 - 2⁷ = 71313134542589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71313134942717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35656567271358 + 35656567271359.

It is an arithmetic number, because the mean of its divisors is an integer number (35656567271359).

Almost surely, 2^{71313134542717} is an apocalyptic number.

It is an amenable number.

71313134542717 is a deficient number, since it is larger than the sum of its proper divisors (1).

71313134542717 is an equidigital number, since it uses as much as digits as its factorization.

71313134542717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 49.

The spelling of 71313134542717 in words is "seventy-one trillion, three hundred thirteen billion, one hundred thirty-four million, five hundred forty-two thousand, seven hundred seventeen".