43441471217 has 2 divisors, whose sum is σ = 43441471218. Its totient is φ = 43441471216.

The previous prime is 43441471207. The next prime is 43441471261. The reversal of 43441471217 is 71217414434.

43441471217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43328920336 + 112550881 = 208156^2 + 10609^2 .

It is a cyclic number.

It is not a de Polignac number, because 43441471217 - 2⁴ = 43441471201 is a prime.

It is a super-2 number, since 2×43441471217² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (43441471207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21720735608 + 21720735609.

It is an arithmetic number, because the mean of its divisors is an integer number (21720735609).

Almost surely, 2^43441471217 is an apocalyptic number.

It is an amenable number.

43441471217 is a deficient number, since it is larger than the sum of its proper divisors (1).

43441471217 is an equidigital number, since it uses as much as digits as its factorization.

43441471217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75264, while the sum is 38.

The spelling of 43441471217 in words is "forty-three billion, four hundred forty-one million, four hundred seventy-one thousand, two hundred seventeen".