2685711636 has 36 divisors (see below), whose sum is σ = 7146193600. Its totient is φ = 848119248.

The previous prime is 2685711619. The next prime is 2685711649. The reversal of 2685711636 is 6361175862.

2685711636 is a `hidden beast` number, since 2 + 6 + 8 + 5 + 7 + 1 + 1 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 2685711591 and 2685711600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1962556 + ... + 1963923.

Almost surely, 2^2685711636 is an apocalyptic number.

It is an amenable number.

2685711636 is an abundant number, since it is smaller than the sum of its proper divisors (4460481964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2685711636 is a wasteful number, since it uses less digits than its factorization.

2685711636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3926508 (or 3926503 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2685711636 is about 51823.8519988625. The cubic root of 2685711636 is about 1390.0159817357.

The spelling of 2685711636 in words is "two billion, six hundred eighty-five million, seven hundred eleven thousand, six hundred thirty-six".