43042144409413 has 2 divisors, whose sum is σ = 43042144409414. Its totient is φ = 43042144409412.

The previous prime is 43042144409357. The next prime is 43042144409419. The reversal of 43042144409413 is 31490444124034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31047607473444 + 11994536935969 = 5572038^2 + 3463313^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43042144409413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43042144409413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43042144409419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521072204706 + 21521072204707.

It is an arithmetic number, because the mean of its divisors is an integer number (21521072204707).

Almost surely, 2^{43042144409413} is an apocalyptic number.

It is an amenable number.

43042144409413 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042144409413 is an equidigital number, since it uses as much as digits as its factorization.

43042144409413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 43042144409413 in words is "forty-three trillion, forty-two billion, one hundred forty-four million, four hundred nine thousand, four hundred thirteen".