317438555455 has 16 divisors (see below), whose sum is σ = 436176728064. Its totient is φ = 217255940640.

The previous prime is 317438555437. The next prime is 317438555459. The reversal of 317438555455 is 554555834713.

It is not a de Polignac number, because 317438555455 - 2⁷ = 317438555327 is a prime.

It is a super-2 number, since 2×317438555455² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 317438555396 and 317438555405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317438555459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8652511 + ... + 8689120.

It is an arithmetic number, because the mean of its divisors is an integer number (27261045504).

Almost surely, 2^317438555455 is an apocalyptic number.

317438555455 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

317438555455 is a deficient number, since it is larger than the sum of its proper divisors (118738172609).

317438555455 is a wasteful number, since it uses less digits than its factorization.

317438555455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17342166.

The product of its digits is 25200000, while the sum is 55.

The spelling of 317438555455 in words is "three hundred seventeen billion, four hundred thirty-eight million, five hundred fifty-five thousand, four hundred fifty-five".