1214705327681 has 2 divisors, whose sum is σ = 1214705327682. Its totient is φ = 1214705327680.

The previous prime is 1214705327659. The next prime is 1214705327701. The reversal of 1214705327681 is 1867235074121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755812890625 + 458892437056 = 869375^2 + 677416^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214705327681 - 2³⁴ = 1197525458497 is a prime.

It is a super-2 number, since 2×1214705327681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1214705327581) 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, 607352663840 + 607352663841.

It is an arithmetic number, because the mean of its divisors is an integer number (607352663841).

Almost surely, 2^{1214705327681} is an apocalyptic number.

It is an amenable number.

1214705327681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214705327681 is an equidigital number, since it uses as much as digits as its factorization.

1214705327681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 1214705327681 in words is "one trillion, two hundred fourteen billion, seven hundred five million, three hundred twenty-seven thousand, six hundred eighty-one".