17684996089 has 2 divisors, whose sum is σ = 17684996090. Its totient is φ = 17684996088.

The previous prime is 17684996081. The next prime is 17684996099. The reversal of 17684996089 is 98069948671.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13454144064 + 4230852025 = 115992^2 + 65045^2 .

It is an emirp because it is prime and its reverse (98069948671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17684996089 - 2³ = 17684996081 is a prime.

It is not a weakly prime, because it can be changed into another prime (17684996081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8842498044 + 8842498045.

It is an arithmetic number, because the mean of its divisors is an integer number (8842498045).

Almost surely, 2^17684996089 is an apocalyptic number.

It is an amenable number.

17684996089 is a deficient number, since it is larger than the sum of its proper divisors (1).

17684996089 is an equidigital number, since it uses as much as digits as its factorization.

17684996089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47029248, while the sum is 67.

The spelling of 17684996089 in words is "seventeen billion, six hundred eighty-four million, nine hundred ninety-six thousand, eighty-nine".