2649628808 has 12 divisors (see below), whose sum is σ = 4968327015. Its totient is φ = 1324741608.

The previous prime is 2649628801. The next prime is 2649628811. The reversal of 2649628808 is 8088269462.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1324814404 + 1324814404 = 36398^2 + 36398^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=36398.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2649628808.

It is not an unprimeable number, because it can be changed into a prime (2649628801) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 136493 + ... + 154691.

Almost surely, 2^2649628808 is an apocalyptic number.

It is an amenable number.

2649628808 is a deficient number, since it is larger than the sum of its proper divisors (2318698207).

2649628808 is an frugal number, since it uses more digits than its factorization.

2649628808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36404 (or 18201 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 53.

The square root of 2649628808 is about 51474.5452432559. The cubic root of 2649628808 is about 1383.7628885899.

The spelling of 2649628808 in words is "two billion, six hundred forty-nine million, six hundred twenty-eight thousand, eight hundred eight".