2771812004 has 12 divisors (see below), whose sum is σ = 5223799644. Its totient is φ = 1279297824.

The previous prime is 2771811953. The next prime is 2771812007. The reversal of 2771812004 is 4002181772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 409657600 + 2362154404 = 20240^2 + 48602^2 .

It is not an unprimeable number, because it can be changed into a prime (2771812007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26651987 + ... + 26652090.

It is an arithmetic number, because the mean of its divisors is an integer number (435316637).

Almost surely, 2^2771812004 is an apocalyptic number.

It is an amenable number.

2771812004 is a deficient number, since it is larger than the sum of its proper divisors (2451987640).

2771812004 is a wasteful number, since it uses less digits than its factorization.

2771812004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53304094 (or 53304092 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 2771812004 is about 52648.0009497037. Note that the first 3 decimals coincide. The cubic root of 2771812004 is about 1404.7140418441.

Adding to 2771812004 its reverse (4002181772), we get a palindrome (6773993776).

The spelling of 2771812004 in words is "two billion, seven hundred seventy-one million, eight hundred twelve thousand, four".