2649000949 has 16 divisors (see below), whose sum is σ = 3061907200. Its totient is φ = 2244806784.

The previous prime is 2649000941. The next prime is 2649000953. The reversal of 2649000949 is 9490009462.

It is a 13-Lehmer number, since φ(2649000949) divides (2649000949-1)¹³.

It is a cyclic number.

It is not a de Polignac number, because 2649000949 - 2³ = 2649000941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649000941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368017 + ... + 375145.

It is an arithmetic number, because the mean of its divisors is an integer number (191369200).

Almost surely, 2^2649000949 is an apocalyptic number.

It is an amenable number.

2649000949 is a deficient number, since it is larger than the sum of its proper divisors (412906251).

2649000949 is a wasteful number, since it uses less digits than its factorization.

2649000949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7732.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 2649000949 is about 51468.4461490727. The cubic root of 2649000949 is about 1383.6535806226.

The spelling of 2649000949 in words is "two billion, six hundred forty-nine million, nine hundred forty-nine", and thus it is an aban number.