317505411218 has 4 divisors (see below), whose sum is σ = 476258116830. Its totient is φ = 158752705608.

The previous prime is 317505411217. The next prime is 317505411227. The reversal of 317505411218 is 812114505713.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215209704649 + 102295706569 = 463907^2 + 319837^2 .

It is a super-2 number, since 2×317505411218² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (317505411211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79376352803 + ... + 79376352806.

Almost surely, 2^317505411218 is an apocalyptic number.

317505411218 is a deficient number, since it is larger than the sum of its proper divisors (158752705612).

317505411218 is a wasteful number, since it uses less digits than its factorization.

317505411218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158752705611.

The product of its (nonzero) digits is 33600, while the sum is 38.

The spelling of 317505411218 in words is "three hundred seventeen billion, five hundred five million, four hundred eleven thousand, two hundred eighteen".