1718748089 has 2 divisors, whose sum is σ = 1718748090. Its totient is φ = 1718748088.

The previous prime is 1718748043. The next prime is 1718748181. The reversal of 1718748089 is 9808478171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1456567225 + 262180864 = 38165^2 + 16192^2 .

It is an emirp because it is prime and its reverse (9808478171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1718748089 - 2²⁰ = 1717699513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1718748089.

It is not a weakly prime, because it can be changed into another prime (1718748019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 859374044 + 859374045.

It is an arithmetic number, because the mean of its divisors is an integer number (859374045).

Almost surely, 2^1718748089 is an apocalyptic number.

It is an amenable number.

1718748089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1718748089 is an equidigital number, since it uses as much as digits as its factorization.

1718748089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 903168, while the sum is 53.

The square root of 1718748089 is about 41457.7868319089. The cubic root of 1718748089 is about 1197.8545203187.

The spelling of 1718748089 in words is "one billion, seven hundred eighteen million, seven hundred forty-eight thousand, eighty-nine".