317228886349 has 2 divisors, whose sum is σ = 317228886350. Its totient is φ = 317228886348.

The previous prime is 317228886319. The next prime is 317228886389. The reversal of 317228886349 is 943688822713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289304136900 + 27924749449 = 537870^2 + 167107^2 .

It is a cyclic number.

It is not a de Polignac number, because 317228886349 - 2⁹ = 317228885837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317228886319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158614443174 + 158614443175.

It is an arithmetic number, because the mean of its divisors is an integer number (158614443175).

Almost surely, 2^317228886349 is an apocalyptic number.

It is an amenable number.

317228886349 is a deficient number, since it is larger than the sum of its proper divisors (1).

317228886349 is an equidigital number, since it uses as much as digits as its factorization.

317228886349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27869184, while the sum is 61.

The spelling of 317228886349 in words is "three hundred seventeen billion, two hundred twenty-eight million, eight hundred eighty-six thousand, three hundred forty-nine".