43668006913 has 8 divisors (see below), whose sum is σ = 46246167432. Its totient is φ = 41090896896.

The previous prime is 43668006901. The next prime is 43668006923. The reversal of 43668006913 is 31960086634.

It can be written as a sum of positive squares in 4 ways, for example, as 13006946304 + 30661060609 = 114048^2 + 175103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43668006913 - 2¹⁷ = 43667875841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43668006923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176220 + ... + 344077.

It is an arithmetic number, because the mean of its divisors is an integer number (5780770929).

Almost surely, 2^43668006913 is an apocalyptic number.

It is an amenable number.

43668006913 is a deficient number, since it is larger than the sum of its proper divisors (2578160519).

43668006913 is a wasteful number, since it uses less digits than its factorization.

43668006913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525251.

The product of its (nonzero) digits is 559872, while the sum is 46.

The spelling of 43668006913 in words is "forty-three billion, six hundred sixty-eight million, six thousand, nine hundred thirteen".