68843549713 has 4 divisors (see below), whose sum is σ = 68844179008. Its totient is φ = 68842920420.

The previous prime is 68843549711. The next prime is 68843549743. The reversal of 68843549713 is 31794534886.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 68843549713 - 2¹ = 68843549711 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68843549711) 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 3 ways as a sum of consecutive naturals, for example, 103173 + ... + 385138.

It is an arithmetic number, because the mean of its divisors is an integer number (17211044752).

Almost surely, 2^68843549713 is an apocalyptic number.

It is an amenable number.

68843549713 is a deficient number, since it is larger than the sum of its proper divisors (629295).

68843549713 is a wasteful number, since it uses less digits than its factorization.

68843549713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629294.

The product of its digits is 17418240, while the sum is 58.

The spelling of 68843549713 in words is "sixty-eight billion, eight hundred forty-three million, five hundred forty-nine thousand, seven hundred thirteen".