17716662349 has 2 divisors, whose sum is σ = 17716662350. Its totient is φ = 17716662348.

The previous prime is 17716662343. The next prime is 17716662389. The reversal of 17716662349 is 94326661771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17309349225 + 407313124 = 131565^2 + 20182^2 .

It is a cyclic number.

It is not a de Polignac number, because 17716662349 - 2⁵ = 17716662317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17716662296 and 17716662305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17716662343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8858331174 + 8858331175.

It is an arithmetic number, because the mean of its divisors is an integer number (8858331175).

Almost surely, 2^17716662349 is an apocalyptic number.

It is an amenable number.

17716662349 is a deficient number, since it is larger than the sum of its proper divisors (1).

17716662349 is an equidigital number, since it uses as much as digits as its factorization.

17716662349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The spelling of 17716662349 in words is "seventeen billion, seven hundred sixteen million, six hundred sixty-two thousand, three hundred forty-nine".