2649682636 has 24 divisors (see below), whose sum is σ = 4728054240. Its totient is φ = 1298848512.

The previous prime is 2649682619. The next prime is 2649682709. The reversal of 2649682636 is 6362869462.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326500 + ... + 334516.

It is an arithmetic number, because the mean of its divisors is an integer number (197002260).

Almost surely, 2^2649682636 is an apocalyptic number.

It is an amenable number.

2649682636 is a deficient number, since it is larger than the sum of its proper divisors (2078371604).

2649682636 is a wasteful number, since it uses less digits than its factorization.

2649682636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9633 (or 9631 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 52.

The square root of 2649682636 is about 51475.0681009749. The cubic root of 2649682636 is about 1383.7722590451.

The spelling of 2649682636 in words is "two billion, six hundred forty-nine million, six hundred eighty-two thousand, six hundred thirty-six".