2773533641 has 2 divisors, whose sum is σ = 2773533642. Its totient is φ = 2773533640.

The previous prime is 2773533617. The next prime is 2773533643. The reversal of 2773533641 is 1463353772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2097273616 + 676260025 = 45796^2 + 26005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2773533641 is a prime.

Together with 2773533643, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2773533643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386766820 + 1386766821.

It is an arithmetic number, because the mean of its divisors is an integer number (1386766821).

Almost surely, 2^2773533641 is an apocalyptic number.

It is an amenable number.

2773533641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773533641 is an equidigital number, since it uses as much as digits as its factorization.

2773533641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 41.

The square root of 2773533641 is about 52664.3488614452. The cubic root of 2773533641 is about 1405.0048151876.

The spelling of 2773533641 in words is "two billion, seven hundred seventy-three million, five hundred thirty-three thousand, six hundred forty-one".