1317071673 has 24 divisors (see below), whose sum is σ = 1972705280. Its totient is φ = 845873280.

The previous prime is 1317071641. The next prime is 1317071699. The reversal of 1317071673 is 3761707131.

It is not a de Polignac number, because 1317071673 - 2⁵ = 1317071641 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317070673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51633 + ... + 72801.

Almost surely, 2^1317071673 is an apocalyptic number.

It is an amenable number.

1317071673 is a deficient number, since it is larger than the sum of its proper divisors (655633607).

1317071673 is a wasteful number, since it uses less digits than its factorization.

1317071673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21429 (or 21426 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 1317071673 is about 36291.4820997986. The cubic root of 1317071673 is about 1096.1495327726.

The spelling of 1317071673 in words is "one billion, three hundred seventeen million, seventy-one thousand, six hundred seventy-three".