43328383892609 has 2 divisors, whose sum is σ = 43328383892610. Its totient is φ = 43328383892608.

The previous prime is 43328383892543. The next prime is 43328383892639. The reversal of 43328383892609 is 90629838382334.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38795806762384 + 4532577130225 = 6228628^2 + 2128985^2 .

It is a cyclic number.

It is not a de Polignac number, because 43328383892609 - 2⁴⁰ = 42228872264833 is a prime.

It is not a weakly prime, because it can be changed into another prime (43328383892639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21664191946304 + 21664191946305.

It is an arithmetic number, because the mean of its divisors is an integer number (21664191946305).

Almost surely, 2^{43328383892609} is an apocalyptic number.

It is an amenable number.

43328383892609 is a deficient number, since it is larger than the sum of its proper divisors (1).

43328383892609 is an equidigital number, since it uses as much as digits as its factorization.

43328383892609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322486272, while the sum is 68.

The spelling of 43328383892609 in words is "forty-three trillion, three hundred twenty-eight billion, three hundred eighty-three million, eight hundred ninety-two thousand, six hundred nine".