2943761449 has 2 divisors, whose sum is σ = 2943761450. Its totient is φ = 2943761448.

The previous prime is 2943761417. The next prime is 2943761479. The reversal of 2943761449 is 9441673492.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2427335824 + 516425625 = 49268^2 + 22725^2 .

It is a cyclic number.

It is not a de Polignac number, because 2943761449 - 2⁵ = 2943761417 is a prime.

It is not a weakly prime, because it can be changed into another prime (2943761479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1471880724 + 1471880725.

It is an arithmetic number, because the mean of its divisors is an integer number (1471880725).

Almost surely, 2^2943761449 is an apocalyptic number.

It is an amenable number.

2943761449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2943761449 is an equidigital number, since it uses as much as digits as its factorization.

2943761449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The square root of 2943761449 is about 54256.4415438388. The cubic root of 2943761449 is about 1433.1804363258.

The spelling of 2943761449 in words is "two billion, nine hundred forty-three million, seven hundred sixty-one thousand, four hundred forty-nine".