43068994399 has 4 divisors (see below), whose sum is σ = 43093151536. Its totient is φ = 43044837264.

The previous prime is 43068994361. The next prime is 43068994411. The reversal of 43068994399 is 99349986034.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 43068994399 - 2¹⁵ = 43068961631 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43068994399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43068994349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12075894 + ... + 12079459.

It is an arithmetic number, because the mean of its divisors is an integer number (10773287884).

Almost surely, 2^43068994399 is an apocalyptic number.

43068994399 is a deficient number, since it is larger than the sum of its proper divisors (24157137).

43068994399 is a wasteful number, since it uses less digits than its factorization.

43068994399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24157136.

The product of its (nonzero) digits is 45349632, while the sum is 64.

The spelling of 43068994399 in words is "forty-three billion, sixty-eight million, nine hundred ninety-four thousand, three hundred ninety-nine".