43407113666779 has 2 divisors, whose sum is σ = 43407113666780. Its totient is φ = 43407113666778.

The previous prime is 43407113666771. The next prime is 43407113666783. The reversal of 43407113666779 is 97766631170434.

43407113666779 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 43407113666779 - 2³ = 43407113666771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 43407113666779.

It is not a weakly prime, because it can be changed into another prime (43407113666771) 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, 21703556833389 + 21703556833390.

It is an arithmetic number, because the mean of its divisors is an integer number (21703556833390).

Almost surely, 2^{43407113666779} is an apocalyptic number.

43407113666779 is a deficient number, since it is larger than the sum of its proper divisors (1).

43407113666779 is an equidigital number, since it uses as much as digits as its factorization.

43407113666779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96018048, while the sum is 64.

The spelling of 43407113666779 in words is "forty-three trillion, four hundred seven billion, one hundred thirteen million, six hundred sixty-six thousand, seven hundred seventy-nine".