17471204540449 has 27 divisors (see below), whose sum is σ = 19890441539059. Its totient is φ = 15334056195920.

The previous prime is 17471204540437. The next prime is 17471204540557. The reversal of 17471204540449 is 94404540217471.

The square root of 17471204540449 is 4179857.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9161475864849 + 8309728675600 = 3026793^2 + 2882660^2 .

It is not a de Polignac number, because 17471204540449 - 2²⁷ = 17471070322721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17471204540396 and 17471204540405.

It is not an unprimeable number, because it can be changed into a prime (17471204547449) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1333367832 + ... + 1333380934.

Almost surely, 2^{17471204540449} is an apocalyptic number.

17471204540449 is the 4179857-th square number.

17471204540449 is the 2089929-th centered octagonal number.

It is an amenable number.

17471204540449 is a deficient number, since it is larger than the sum of its proper divisors (2419236998610).

17471204540449 is an frugal number, since it uses more digits than its factorization.

17471204540449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26286 (or 13143 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 17471204540449 in words is "seventeen trillion, four hundred seventy-one billion, two hundred four million, five hundred forty thousand, four hundred forty-nine".