449453590569 has 27 divisors (see below), whose sum is σ = 664787698263. Its totient is φ = 292611139632.

The previous prime is 449453590529. The next prime is 449453590601. The reversal of 449453590569 is 965095354944.

The square root of 449453590569 is 670413.

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

449453590569 is a `hidden beast` number, since 4 + 4 + 9 + 4 + 535 + 90 + 5 + 6 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 205603299225 + 243850291344 = 453435^2 + 493812^2 .

It is not a de Polignac number, because 449453590569 - 2⁷ = 449453590441 is a prime.

It is a super-2 number, since 2×449453590569² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449453590529) 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, 86480679 + ... + 86485875.

Almost surely, 2^449453590569 is an apocalyptic number.

449453590569 is the 670413-rd square number.

449453590569 is the 335207-th centered octagonal number.

It is an amenable number.

449453590569 is a deficient number, since it is larger than the sum of its proper divisors (215334107694).

449453590569 is an frugal number, since it uses more digits than its factorization.

449453590569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 104976000, while the sum is 63.

The spelling of 449453590569 in words is "four hundred forty-nine billion, four hundred fifty-three million, five hundred ninety thousand, five hundred sixty-nine".