2771839964 has 12 divisors (see below), whose sum is σ = 4851207984. Its totient is φ = 1385780544.

The previous prime is 2771839949. The next prime is 2771839969. The reversal of 2771839964 is 4699381772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2771839969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19172 + ... + 76884.

It is an arithmetic number, because the mean of its divisors is an integer number (404267332).

Almost surely, 2^2771839964 is an apocalyptic number.

It is an amenable number.

2771839964 is a deficient number, since it is larger than the sum of its proper divisors (2079368020).

2771839964 is a wasteful number, since it uses less digits than its factorization.

2771839964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69724 (or 69722 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 56.

The square root of 2771839964 is about 52648.2664861817. The cubic root of 2771839964 is about 1404.7187650688.

The spelling of 2771839964 in words is "two billion, seven hundred seventy-one million, eight hundred thirty-nine thousand, nine hundred sixty-four".