4349326582781 has 2 divisors, whose sum is σ = 4349326582782. Its totient is φ = 4349326582780.

The previous prime is 4349326582759. The next prime is 4349326582901. The reversal of 4349326582781 is 1872856239434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2643079320025 + 1706247262756 = 1625755^2 + 1306234^2 .

It is a cyclic number.

It is not a de Polignac number, because 4349326582781 - 2¹⁰ = 4349326581757 is a prime.

It is a super-2 number, since 2×4349326582781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4349326582681) by changing a digit.

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, 2174663291390 + 2174663291391.

It is an arithmetic number, because the mean of its divisors is an integer number (2174663291391).

Almost surely, 2^{4349326582781} is an apocalyptic number.

It is an amenable number.

4349326582781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4349326582781 is an equidigital number, since it uses as much as digits as its factorization.

4349326582781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69672960, while the sum is 62.

The spelling of 4349326582781 in words is "four trillion, three hundred forty-nine billion, three hundred twenty-six million, five hundred eighty-two thousand, seven hundred eighty-one".