316357786721 has 2 divisors, whose sum is σ = 316357786722. Its totient is φ = 316357786720.

The previous prime is 316357786711. The next prime is 316357786757. The reversal of 316357786721 is 127687753613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201097536721 + 115260250000 = 448439^2 + 339500^2 .

It is a cyclic number.

It is not a de Polignac number, because 316357786721 - 2¹⁰ = 316357785697 is a prime.

It is a super-3 number, since 3×316357786721³ (a number of 35 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (316357786711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158178893360 + 158178893361.

It is an arithmetic number, because the mean of its divisors is an integer number (158178893361).

Almost surely, 2^316357786721 is an apocalyptic number.

It is an amenable number.

316357786721 is a deficient number, since it is larger than the sum of its proper divisors (1).

316357786721 is an equidigital number, since it uses as much as digits as its factorization.

316357786721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 56.

The spelling of 316357786721 in words is "three hundred sixteen billion, three hundred fifty-seven million, seven hundred eighty-six thousand, seven hundred twenty-one".