43210450045439 has 2 divisors, whose sum is σ = 43210450045440. Its totient is φ = 43210450045438.

The previous prime is 43210450045421. The next prime is 43210450045453. The reversal of 43210450045439 is 93454005401234.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43210450045439 - 2⁸ = 43210450045183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43210450045439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43210450045489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21605225022719 + 21605225022720.

It is an arithmetic number, because the mean of its divisors is an integer number (21605225022720).

Almost surely, 2^{43210450045439} is an apocalyptic number.

43210450045439 is a deficient number, since it is larger than the sum of its proper divisors (1).

43210450045439 is an equidigital number, since it uses as much as digits as its factorization.

43210450045439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 43210450045439 in words is "forty-three trillion, two hundred ten billion, four hundred fifty million, forty-five thousand, four hundred thirty-nine".