43605912659 has 2 divisors, whose sum is σ = 43605912660. Its totient is φ = 43605912658.

The previous prime is 43605912641. The next prime is 43605912667. The reversal of 43605912659 is 95621950634.

43605912659 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 a de Polignac number, because none of the positive numbers 2^k-43605912659 is a prime.

It is not a weakly prime, because it can be changed into another prime (43605912619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21802956329 + 21802956330.

It is an arithmetic number, because the mean of its divisors is an integer number (21802956330).

Almost surely, 2^43605912659 is an apocalyptic number.

43605912659 is a deficient number, since it is larger than the sum of its proper divisors (1).

43605912659 is an equidigital number, since it uses as much as digits as its factorization.

43605912659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 50.

The spelling of 43605912659 in words is "forty-three billion, six hundred five million, nine hundred twelve thousand, six hundred fifty-nine".