317908738487 has 8 divisors (see below), whose sum is σ = 320105033472. Its totient is φ = 315717984000.

The previous prime is 317908738481. The next prime is 317908738501. The reversal of 317908738487 is 784837809713.

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

It is a cyclic number.

It is not a de Polignac number, because 317908738487 - 2¹⁰ = 317908737463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317908738481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269938 + ... + 1499519.

It is an arithmetic number, because the mean of its divisors is an integer number (40013129184).

Almost surely, 2^317908738487 is an apocalyptic number.

317908738487 is a deficient number, since it is larger than the sum of its proper divisors (2196294985).

317908738487 is a wasteful number, since it uses less digits than its factorization.

317908738487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770249.

The product of its (nonzero) digits is 56899584, while the sum is 65.

The spelling of 317908738487 in words is "three hundred seventeen billion, nine hundred eight million, seven hundred thirty-eight thousand, four hundred eighty-seven".