3943362274349 has 2 divisors, whose sum is σ = 3943362274350. Its totient is φ = 3943362274348.

The previous prime is 3943362274309. The next prime is 3943362274381. The reversal of 3943362274349 is 9434722633493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2506617232900 + 1436745041449 = 1583230^2 + 1198643^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943362274349 - 2²⁰ = 3943361225773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3943362274309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971681137174 + 1971681137175.

It is an arithmetic number, because the mean of its divisors is an integer number (1971681137175).

Almost surely, 2^{3943362274349} is an apocalyptic number.

It is an amenable number.

3943362274349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943362274349 is an equidigital number, since it uses as much as digits as its factorization.

3943362274349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70543872, while the sum is 59.

The spelling of 3943362274349 in words is "three trillion, nine hundred forty-three billion, three hundred sixty-two million, two hundred seventy-four thousand, three hundred forty-nine".