68073440003347 has 4 divisors (see below), whose sum is σ = 69521811067296. Its totient is φ = 66625068939400.

The previous prime is 68073440003321. The next prime is 68073440003357. The reversal of 68073440003347 is 74330004437086.

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 68073440003347 - 2¹¹ = 68073440001299 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 68073440003347.

It is not an unprimeable number, because it can be changed into a prime (68073440003357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724185531904 + ... + 724185531997.

It is an arithmetic number, because the mean of its divisors is an integer number (17380452766824).

Almost surely, 2^{68073440003347} is an apocalyptic number.

68073440003347 is a deficient number, since it is larger than the sum of its proper divisors (1448371063949).

68073440003347 is a wasteful number, since it uses less digits than its factorization.

68073440003347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448371063948.

The product of its (nonzero) digits is 4064256, while the sum is 49.

The spelling of 68073440003347 in words is "sixty-eight trillion, seventy-three billion, four hundred forty million, three thousand, three hundred forty-seven".