43668006923 has 2 divisors, whose sum is σ = 43668006924. Its totient is φ = 43668006922.

The previous prime is 43668006901. The next prime is 43668006959. The reversal of 43668006923 is 32960086634.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43668006923 - 2¹⁴ = 43667990539 is a prime.

It is not a weakly prime, because it can be changed into another prime (43668006623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21834003461 + 21834003462.

It is an arithmetic number, because the mean of its divisors is an integer number (21834003462).

Almost surely, 2^43668006923 is an apocalyptic number.

43668006923 is a deficient number, since it is larger than the sum of its proper divisors (1).

43668006923 is an equidigital number, since it uses as much as digits as its factorization.

43668006923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 43668006923 in words is "forty-three billion, six hundred sixty-eight million, six thousand, nine hundred twenty-three".