313546361861 has 2 divisors, whose sum is σ = 313546361862. Its totient is φ = 313546361860.

The previous prime is 313546361833. The next prime is 313546361911. The reversal of 313546361861 is 168163645313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291633480961 + 21912880900 = 540031^2 + 148030^2 .

It is a cyclic number.

It is not a de Polignac number, because 313546361861 - 2³⁴ = 296366492677 is a prime.

It is a super-2 number, since 2×313546361861² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313546361801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156773180930 + 156773180931.

It is an arithmetic number, because the mean of its divisors is an integer number (156773180931).

Almost surely, 2^313546361861 is an apocalyptic number.

It is an amenable number.

313546361861 is a deficient number, since it is larger than the sum of its proper divisors (1).

313546361861 is an equidigital number, since it uses as much as digits as its factorization.

313546361861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 47.

The spelling of 313546361861 in words is "three hundred thirteen billion, five hundred forty-six million, three hundred sixty-one thousand, eight hundred sixty-one".