71018360089 has 2 divisors, whose sum is σ = 71018360090. Its totient is φ = 71018360088.

The previous prime is 71018360053. The next prime is 71018360099. The reversal of 71018360089 is 98006381017.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47934723600 + 23083636489 = 218940^2 + 151933^2 .

It is a cyclic number.

It is not a de Polignac number, because 71018360089 - 2¹⁷ = 71018229017 is a prime.

It is not a weakly prime, because it can be changed into another prime (71018360029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35509180044 + 35509180045.

It is an arithmetic number, because the mean of its divisors is an integer number (35509180045).

Almost surely, 2^71018360089 is an apocalyptic number.

It is an amenable number.

71018360089 is a deficient number, since it is larger than the sum of its proper divisors (1).

71018360089 is an equidigital number, since it uses as much as digits as its factorization.

71018360089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 43.

The spelling of 71018360089 in words is "seventy-one billion, eighteen million, three hundred sixty thousand, eighty-nine".