316136869861 has 2 divisors, whose sum is σ = 316136869862. Its totient is φ = 316136869860.

The previous prime is 316136869843. The next prime is 316136869927. The reversal of 316136869861 is 168968631613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220600241761 + 95536628100 = 469681^2 + 309090^2 .

It is a cyclic number.

It is not a de Polignac number, because 316136869861 - 2¹³ = 316136861669 is a prime.

It is the 562261-st Hogben number.

It is a junction number, because it is equal to n+sod(n) for n = 316136869796 and 316136869805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316136869261) by changing a digit.

It is a nontrivial repunit in base 562260.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158068434930 + 158068434931.

It is an arithmetic number, because the mean of its divisors is an integer number (158068434931).

Almost surely, 2^316136869861 is an apocalyptic number.

It is an amenable number.

316136869861 is a deficient number, since it is larger than the sum of its proper divisors (1).

316136869861 is an equidigital number, since it uses as much as digits as its factorization.

316136869861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6718464, while the sum is 58.

The spelling of 316136869861 in words is "three hundred sixteen billion, one hundred thirty-six million, eight hundred sixty-nine thousand, eight hundred sixty-one".