43351445513429 has 2 divisors, whose sum is σ = 43351445513430. Its totient is φ = 43351445513428.

The previous prime is 43351445513377. The next prime is 43351445513443. The reversal of 43351445513429 is 92431554415334.

43351445513429 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 can be written as a sum of positive squares in only one way, i.e., 43305638812804 + 45806700625 = 6580702^2 + 214025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43351445513429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43351445513449) 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, 21675722756714 + 21675722756715.

It is an arithmetic number, because the mean of its divisors is an integer number (21675722756715).

Almost surely, 2^{43351445513429} is an apocalyptic number.

It is an amenable number.

43351445513429 is a deficient number, since it is larger than the sum of its proper divisors (1).

43351445513429 is an equidigital number, since it uses as much as digits as its factorization.

43351445513429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552000, while the sum is 53.

The spelling of 43351445513429 in words is "forty-three trillion, three hundred fifty-one billion, four hundred forty-five million, five hundred thirteen thousand, four hundred twenty-nine".