317421206818 has 8 divisors (see below), whose sum is σ = 476176303260. Its totient is φ = 158695772400.

The previous prime is 317421206789. The next prime is 317421206831. The reversal of 317421206818 is 818602124713.

It can be written as a sum of positive squares in 2 ways, for example, as 317089493449 + 331713369 = 563107^2 + 18213^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7388733 + ... + 7431568.

Almost surely, 2^317421206818 is an apocalyptic number.

317421206818 is a deficient number, since it is larger than the sum of its proper divisors (158755096442).

317421206818 is a wasteful number, since it uses less digits than its factorization.

317421206818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14831012.

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 317421206818 in words is "three hundred seventeen billion, four hundred twenty-one million, two hundred six thousand, eight hundred eighteen".