668313630743 has 16 divisors (see below), whose sum is σ = 729655264896. Its totient is φ = 607069887840.

The previous prime is 668313630709. The next prime is 668313630749. The reversal of 668313630743 is 347036313866.

668313630743 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 668313630743 - 2¹⁰ = 668313629719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 668313630691 and 668313630700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668313630749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108436580 + ... + 108442742.

It is an arithmetic number, because the mean of its divisors is an integer number (45603454056).

Almost surely, 2^668313630743 is an apocalyptic number.

668313630743 is a deficient number, since it is larger than the sum of its proper divisors (61341634153).

668313630743 is a wasteful number, since it uses less digits than its factorization.

668313630743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12494.

The product of its (nonzero) digits is 3919104, while the sum is 50.

The spelling of 668313630743 in words is "six hundred sixty-eight billion, three hundred thirteen million, six hundred thirty thousand, seven hundred forty-three".