71068131344173 has 2 divisors, whose sum is σ = 71068131344174. Its totient is φ = 71068131344172.

The previous prime is 71068131344141. The next prime is 71068131344191. The reversal of 71068131344173 is 37144313186017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62978873861929 + 8089257482244 = 7935923^2 + 2844162^2 .

It is a cyclic number.

It is not a de Polignac number, because 71068131344173 - 2⁵ = 71068131344141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (71068131344113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35534065672086 + 35534065672087.

It is an arithmetic number, because the mean of its divisors is an integer number (35534065672087).

Almost surely, 2^{71068131344173} is an apocalyptic number.

It is an amenable number.

71068131344173 is a deficient number, since it is larger than the sum of its proper divisors (1).

71068131344173 is an equidigital number, since it uses as much as digits as its factorization.

71068131344173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 71068131344173 in words is "seventy-one trillion, sixty-eight billion, one hundred thirty-one million, three hundred forty-four thousand, one hundred seventy-three".