2773830661 has 12 divisors (see below), whose sum is σ = 3281394240. Its totient is φ = 2337268920.

The previous prime is 2773830649. The next prime is 2773830667. The reversal of 2773830661 is 1660383772.

It is not a de Polignac number, because 2773830661 - 2⁹ = 2773830149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2773830667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476845 + ... + 482626.

It is an arithmetic number, because the mean of its divisors is an integer number (273449520).

Almost surely, 2^2773830661 is an apocalyptic number.

It is an amenable number.

2773830661 is a deficient number, since it is larger than the sum of its proper divisors (507563579).

2773830661 is an equidigital number, since it uses as much as digits as its factorization.

2773830661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959544 (or 959537 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 2773830661 is about 52667.1687201809. The cubic root of 2773830661 is about 1405.0549677713.

The spelling of 2773830661 in words is "two billion, seven hundred seventy-three million, eight hundred thirty thousand, six hundred sixty-one".