17469975449 has 2 divisors, whose sum is σ = 17469975450. Its totient is φ = 17469975448.

The previous prime is 17469975443. The next prime is 17469975469. The reversal of 17469975449 is 94457996471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9159829849 + 8310145600 = 95707^2 + 91160^2 .

It is an emirp because it is prime and its reverse (94457996471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17469975449 - 2⁴ = 17469975433 is a prime.

It is not a weakly prime, because it can be changed into another prime (17469975443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8734987724 + 8734987725.

It is an arithmetic number, because the mean of its divisors is an integer number (8734987725).

Almost surely, 2^17469975449 is an apocalyptic number.

It is an amenable number.

17469975449 is a deficient number, since it is larger than the sum of its proper divisors (1).

17469975449 is an equidigital number, since it uses as much as digits as its factorization.

17469975449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68584320, while the sum is 65.

The spelling of 17469975449 in words is "seventeen billion, four hundred sixty-nine million, nine hundred seventy-five thousand, four hundred forty-nine".