317000663642 has 16 divisors (see below), whose sum is σ = 514907162952. Its totient is φ = 145499664960.

The previous prime is 317000663597. The next prime is 317000663657. The reversal of 317000663642 is 246366000713.

It can be written as a sum of positive squares in 4 ways, for example, as 156759773041 + 160240890601 = 395929^2 + 400301^2 .

It is a junction number, because it is equal to n+sod(n) for n = 317000663596 and 317000663605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33675773 + ... + 33685184.

Almost surely, 2^317000663642 is an apocalyptic number.

317000663642 is a deficient number, since it is larger than the sum of its proper divisors (197906499310).

317000663642 is a wasteful number, since it uses less digits than its factorization.

317000663642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67361153.

The product of its (nonzero) digits is 108864, while the sum is 38.

The spelling of 317000663642 in words is "three hundred seventeen billion, six hundred sixty-three thousand, six hundred forty-two".