71060198089 has 2 divisors, whose sum is σ = 71060198090. Its totient is φ = 71060198088.

The previous prime is 71060198087. The next prime is 71060198179. The reversal of 71060198089 is 98089106017.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63344332489 + 7715865600 = 251683^2 + 87840^2 .

It is a cyclic number.

It is not a de Polignac number, because 71060198089 - 2¹ = 71060198087 is a prime.

Together with 71060198087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (71060198081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35530099044 + 35530099045.

It is an arithmetic number, because the mean of its divisors is an integer number (35530099045).

Almost surely, 2^71060198089 is an apocalyptic number.

It is an amenable number.

71060198089 is a deficient number, since it is larger than the sum of its proper divisors (1).

71060198089 is an equidigital number, since it uses as much as digits as its factorization.

71060198089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 49.

The spelling of 71060198089 in words is "seventy-one billion, sixty million, one hundred ninety-eight thousand, eighty-nine".