17445795049 has 2 divisors, whose sum is σ = 17445795050. Its totient is φ = 17445795048.

The previous prime is 17445795043. The next prime is 17445795083. The reversal of 17445795049 is 94059754471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17389169424 + 56625625 = 131868^2 + 7525^2 .

It is an emirp because it is prime and its reverse (94059754471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17445795049 - 2⁹ = 17445794537 is a prime.

It is not a weakly prime, because it can be changed into another prime (17445795043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8722897524 + 8722897525.

It is an arithmetic number, because the mean of its divisors is an integer number (8722897525).

Almost surely, 2^17445795049 is an apocalyptic number.

It is an amenable number.

17445795049 is a deficient number, since it is larger than the sum of its proper divisors (1).

17445795049 is an equidigital number, since it uses as much as digits as its factorization.

17445795049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6350400, while the sum is 55.

The spelling of 17445795049 in words is "seventeen billion, four hundred forty-five million, seven hundred ninety-five thousand, forty-nine".