43244265445691 has 2 divisors, whose sum is σ = 43244265445692. Its totient is φ = 43244265445690.

The previous prime is 43244265445597. The next prime is 43244265445781. The reversal of 43244265445691 is 19654456244234.

It is a happy number.

43244265445691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43244265445691 - 2¹⁸ = 43244265183547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43244265445691.

It is not a weakly prime, because it can be changed into another prime (43244265445091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21622132722845 + 21622132722846.

It is an arithmetic number, because the mean of its divisors is an integer number (21622132722846).

Almost surely, 2^{43244265445691} is an apocalyptic number.

43244265445691 is a deficient number, since it is larger than the sum of its proper divisors (1).

43244265445691 is an equidigital number, since it uses as much as digits as its factorization.

43244265445691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 99532800, while the sum is 59.

The spelling of 43244265445691 in words is "forty-three trillion, two hundred forty-four billion, two hundred sixty-five million, four hundred forty-five thousand, six hundred ninety-one".