317051622818 has 54 divisors (see below), whose sum is σ = 578555630289. Its totient is φ = 129918916512.

The previous prime is 317051622781. The next prime is 317051622847. The reversal of 317051622818 is 818226150713.

It can be written as a sum of positive squares in 2 ways, for example, as 296657783569 + 20393839249 = 544663^2 + 142807^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=398153.

It is a super-2 number, since 2×317051622818² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 128204030 + ... + 128206502.

Almost surely, 2^317051622818 is an apocalyptic number.

317051622818 is a deficient number, since it is larger than the sum of its proper divisors (261504007471).

317051622818 is an frugal number, since it uses more digits than its factorization.

317051622818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5008 (or 2505 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 317051622818 in words is "three hundred seventeen billion, fifty-one million, six hundred twenty-two thousand, eight hundred eighteen".