317105707720551 has 8 divisors (see below), whose sum is σ = 422807692558320. Its totient is φ = 211403764014912.

The previous prime is 317105707720541. The next prime is 317105707720553. The reversal of 317105707720551 is 155027707501713.

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

It is not a de Polignac number, because 317105707720551 - 2¹⁰ = 317105707719527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317105707720494 and 317105707720503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317105707720553) 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, 25017945 + ... + 35498013.

It is an arithmetic number, because the mean of its divisors is an integer number (52850961569790).

Almost surely, 2^{317105707720551} is an apocalyptic number.

317105707720551 is a deficient number, since it is larger than the sum of its proper divisors (105701984837769).

317105707720551 is a wasteful number, since it uses less digits than its factorization.

317105707720551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20566065.

The product of its (nonzero) digits is 1800750, while the sum is 51.

The spelling of 317105707720551 in words is "three hundred seventeen trillion, one hundred five billion, seven hundred seven million, seven hundred twenty thousand, five hundred fifty-one".