318668747873 has 16 divisors (see below), whose sum is σ = 380044431360. Its totient is φ = 261257027856.

The previous prime is 318668747867. The next prime is 318668747911. The reversal of 318668747873 is 378747866813.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 318668747873 - 2⁶ = 318668747809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318668747843) 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, 6796436 + ... + 6843162.

It is an arithmetic number, because the mean of its divisors is an integer number (23752776960).

Almost surely, 2^318668747873 is an apocalyptic number.

It is an amenable number.

318668747873 is a deficient number, since it is larger than the sum of its proper divisors (61375683487).

318668747873 is a wasteful number, since it uses less digits than its factorization.

318668747873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89116.

The product of its digits is 227598336, while the sum is 68.

The spelling of 318668747873 in words is "three hundred eighteen billion, six hundred sixty-eight million, seven hundred forty-seven thousand, eight hundred seventy-three".