43441320546009 has 81 divisors (see below), whose sum is σ = 65457735221151. Its totient is φ = 27761304636000.

The previous prime is 43441320545927. The next prime is 43441320546089. The reversal of 43441320546009 is 90064502314434.

The square root of 43441320546009 is 6591003.

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

43441320546009 is a `hidden beast` number, since 4 + 3 + 4 + 4 + 1 + 32 + 0 + 5 + 4 + 600 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 17259064286409 + 26182256259600 = 4154403^2 + 5116860^2 .

It is not a de Polignac number, because 43441320546009 - 2⁷ = 43441320545881 is a prime.

It is a super-2 number, since 2×43441320546009² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43441320546089) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 80298189279 + ... + 80298189819.

Almost surely, 2^{43441320546009} is an apocalyptic number.

43441320546009 is the 6591003-rd square number.

43441320546009 is the 3295502-nd centered octagonal number.

It is an amenable number.

43441320546009 is a deficient number, since it is larger than the sum of its proper divisors (22016414675142).

43441320546009 is an frugal number, since it uses more digits than its factorization.

43441320546009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412 (or 706 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 43441320546009 in words is "forty-three trillion, four hundred forty-one billion, three hundred twenty million, five hundred forty-six thousand, nine".