71742113017 has 2 divisors, whose sum is σ = 71742113018. Its totient is φ = 71742113016.

The previous prime is 71742112963. The next prime is 71742113033. The reversal of 71742113017 is 71031124717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70655487721 + 1086625296 = 265811^2 + 32964^2 .

It is a cyclic number.

It is not a de Polignac number, because 71742113017 - 2⁷ = 71742112889 is a prime.

It is not a weakly prime, because it can be changed into another prime (71742113057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35871056508 + 35871056509.

It is an arithmetic number, because the mean of its divisors is an integer number (35871056509).

Almost surely, 2^71742113017 is an apocalyptic number.

It is an amenable number.

71742113017 is a deficient number, since it is larger than the sum of its proper divisors (1).

71742113017 is an equidigital number, since it uses as much as digits as its factorization.

71742113017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8232, while the sum is 34.

The spelling of 71742113017 in words is "seventy-one billion, seven hundred forty-two million, one hundred thirteen thousand, seventeen".