2771475449 has 2 divisors, whose sum is σ = 2771475450. Its totient is φ = 2771475448.

The previous prime is 2771475419. The next prime is 2771475533. The reversal of 2771475449 is 9445741772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2708161600 + 63313849 = 52040^2 + 7957^2 .

It is a cyclic number.

It is not a de Polignac number, because 2771475449 - 2⁸ = 2771475193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2771475397 and 2771475406.

It is not a weakly prime, because it can be changed into another prime (2771475409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385737724 + 1385737725.

It is an arithmetic number, because the mean of its divisors is an integer number (1385737725).

Almost surely, 2^2771475449 is an apocalyptic number.

It is an amenable number.

2771475449 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771475449 is an equidigital number, since it uses as much as digits as its factorization.

2771475449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 50.

The square root of 2771475449 is about 52644.8045774699. The cubic root of 2771475449 is about 1404.6571858153.

The spelling of 2771475449 in words is "two billion, seven hundred seventy-one million, four hundred seventy-five thousand, four hundred forty-nine".