67440622370005 has 4 divisors (see below), whose sum is σ = 80928746844012. Its totient is φ = 53952497896000.

The previous prime is 67440622369987. The next prime is 67440622370021. The reversal of 67440622370005 is 50007322604476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45390375868644 + 22050246501361 = 6737238^2 + 4695769^2 .

It is not a de Polignac number, because 67440622370005 - 2¹³ = 67440622361813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6744062236996 + ... + 6744062237005.

It is an arithmetic number, because the mean of its divisors is an integer number (20232186711003).

Almost surely, 2^{67440622370005} is an apocalyptic number.

It is an amenable number.

67440622370005 is a deficient number, since it is larger than the sum of its proper divisors (13488124474007).

67440622370005 is a wasteful number, since it uses less digits than its factorization.

67440622370005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13488124474006.

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 67440622370005 in words is "sixty-seven trillion, four hundred forty billion, six hundred twenty-two million, three hundred seventy thousand, five".