71000019000089 has 2 divisors, whose sum is σ = 71000019000090. Its totient is φ = 71000019000088.

The previous prime is 71000019000017. The next prime is 71000019000091. The reversal of 71000019000089 is 98000091000017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70917367350025 + 82651650064 = 8421245^2 + 287492^2 .

It is an emirp because it is prime and its reverse (98000091000017) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71000019000089 is a prime.

Together with 71000019000091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (71000019000289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35500009500044 + 35500009500045.

It is an arithmetic number, because the mean of its divisors is an integer number (35500009500045).

Almost surely, 2^{71000019000089} is an apocalyptic number.

It is an amenable number.

71000019000089 is a deficient number, since it is larger than the sum of its proper divisors (1).

71000019000089 is an equidigital number, since it uses as much as digits as its factorization.

71000019000089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 35.

The spelling of 71000019000089 in words is "seventy-one trillion, nineteen million, eighty-nine", and thus it is an aban number and an uban number.