17711194849 has 2 divisors, whose sum is σ = 17711194850. Its totient is φ = 17711194848.

The previous prime is 17711194841. The next prime is 17711194867. The reversal of 17711194849 is 94849111771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13164120225 + 4547074624 = 114735^2 + 67432^2 .

It is a cyclic number.

It is not a de Polignac number, because 17711194849 - 2³ = 17711194841 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17711194796 and 17711194805.

It is not a weakly prime, because it can be changed into another prime (17711194841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8855597424 + 8855597425.

It is an arithmetic number, because the mean of its divisors is an integer number (8855597425).

Almost surely, 2^17711194849 is an apocalyptic number.

It is an amenable number.

17711194849 is a deficient number, since it is larger than the sum of its proper divisors (1).

17711194849 is an equidigital number, since it uses as much as digits as its factorization.

17711194849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 508032, while the sum is 52.

The spelling of 17711194849 in words is "seventeen billion, seven hundred eleven million, one hundred ninety-four thousand, eight hundred forty-nine".