1718939740339 has 4 divisors (see below), whose sum is σ = 1719285678040. Its totient is φ = 1718593802640.

The previous prime is 1718939740283. The next prime is 1718939740391. The reversal of 1718939740339 is 9330479398171.

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 1718939740339 - 2¹⁵ = 1718939707571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1718939740039) 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, 172961397 + ... + 172971334.

It is an arithmetic number, because the mean of its divisors is an integer number (429821419510).

Almost surely, 2^{1718939740339} is an apocalyptic number.

1718939740339 is a deficient number, since it is larger than the sum of its proper divisors (345937701).

1718939740339 is an equidigital number, since it uses as much as digits as its factorization.

1718939740339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345937700.

The product of its (nonzero) digits is 30862944, while the sum is 64.

The spelling of 1718939740339 in words is "one trillion, seven hundred eighteen billion, nine hundred thirty-nine million, seven hundred forty thousand, three hundred thirty-nine".