71141074540517 has 2 divisors, whose sum is σ = 71141074540518. Its totient is φ = 71141074540516.

The previous prime is 71141074540511. The next prime is 71141074540619. The reversal of 71141074540517 is 71504547014117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64800342617956 + 6340731922561 = 8049866^2 + 2518081^2 .

It is a cyclic number.

It is not a de Polignac number, because 71141074540517 - 2¹² = 71141074536421 is a prime.

It is a super-2 number, since 2×71141074540517² (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 (71141074540511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35570537270258 + 35570537270259.

It is an arithmetic number, because the mean of its divisors is an integer number (35570537270259).

Almost surely, 2^{71141074540517} is an apocalyptic number.

It is an amenable number.

71141074540517 is a deficient number, since it is larger than the sum of its proper divisors (1).

71141074540517 is an equidigital number, since it uses as much as digits as its factorization.

71141074540517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 548800, while the sum is 47.

The spelling of 71141074540517 in words is "seventy-one trillion, one hundred forty-one billion, seventy-four million, five hundred forty thousand, five hundred seventeen".