317997601855 has 8 divisors (see below), whose sum is σ = 381610966464. Its totient is φ = 254388852000.

The previous prime is 317997601849. The next prime is 317997601903. The reversal of 317997601855 is 558106799713.

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

It is not a de Polignac number, because 317997601855 - 2⁹ = 317997601343 is a prime.

It is a super-2 number, since 2×317997601855² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 317997601793 and 317997601802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1000231 + ... + 1279240.

It is an arithmetic number, because the mean of its divisors is an integer number (47701370808).

Almost surely, 2^317997601855 is an apocalyptic number.

317997601855 is a deficient number, since it is larger than the sum of its proper divisors (63613364609).

317997601855 is a wasteful number, since it uses less digits than its factorization.

317997601855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2307377.

The product of its (nonzero) digits is 14288400, while the sum is 61.

The spelling of 317997601855 in words is "three hundred seventeen billion, nine hundred ninety-seven million, six hundred one thousand, eight hundred fifty-five".