2772668636 has 12 divisors (see below), whose sum is σ = 4872473760. Its totient is φ = 1380533280.

The previous prime is 2772668629. The next prime is 2772668663. The reversal of 2772668636 is 6368662772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449185 + ... + 1451096.

It is an arithmetic number, because the mean of its divisors is an integer number (406039480).

Almost surely, 2^2772668636 is an apocalyptic number.

It is an amenable number.

2772668636 is a deficient number, since it is larger than the sum of its proper divisors (2099805124).

2772668636 is a wasteful number, since it uses less digits than its factorization.

2772668636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900524 (or 2900522 counting only the distinct ones).

The product of its digits is 6096384, while the sum is 53.

The square root of 2772668636 is about 52656.1357868198. The cubic root of 2772668636 is about 1404.8587364886.

The spelling of 2772668636 in words is "two billion, seven hundred seventy-two million, six hundred sixty-eight thousand, six hundred thirty-six".