2771546489 has 2 divisors, whose sum is σ = 2771546490. Its totient is φ = 2771546488.

The previous prime is 2771546447. The next prime is 2771546627. The reversal of 2771546489 is 9846451772.

2771546489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1742227600 + 1029318889 = 41740^2 + 32083^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2771546489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2771546489.

It is not a weakly prime, because it can be changed into another prime (2771546389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385773244 + 1385773245.

It is an arithmetic number, because the mean of its divisors is an integer number (1385773245).

Almost surely, 2^2771546489 is an apocalyptic number.

It is an amenable number.

2771546489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771546489 is an equidigital number, since it uses as much as digits as its factorization.

2771546489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 53.

The square root of 2771546489 is about 52645.4792836004. The cubic root of 2771546489 is about 1404.6691873641.

The spelling of 2771546489 in words is "two billion, seven hundred seventy-one million, five hundred forty-six thousand, four hundred eighty-nine".