17109571049 has 2 divisors, whose sum is σ = 17109571050. Its totient is φ = 17109571048.

The previous prime is 17109571027. The next prime is 17109571121. The reversal of 17109571049 is 94017590171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15935275225 + 1174295824 = 126235^2 + 34268^2 .

It is a cyclic number.

It is not a de Polignac number, because 17109571049 - 2¹⁶ = 17109505513 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (17109571249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8554785524 + 8554785525.

It is an arithmetic number, because the mean of its divisors is an integer number (8554785525).

Almost surely, 2^17109571049 is an apocalyptic number.

It is an amenable number.

17109571049 is a deficient number, since it is larger than the sum of its proper divisors (1).

17109571049 is an equidigital number, since it uses as much as digits as its factorization.

17109571049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 44.

It can be divided in two parts, 1710 and 9571049, that added together give a palindrome (9572759).

The spelling of 17109571049 in words is "seventeen billion, one hundred nine million, five hundred seventy-one thousand, forty-nine".