2649441615 has 16 divisors (see below), whose sum is σ = 4272488448. Its totient is φ = 1401908256.

The previous prime is 2649441611. The next prime is 2649441617. The reversal of 2649441615 is 5161449462.

It is not a de Polignac number, because 2649441615 - 2² = 2649441611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2649441611) 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, 693487 + ... + 697296.

It is an arithmetic number, because the mean of its divisors is an integer number (267030528).

Almost surely, 2^2649441615 is an apocalyptic number.

2649441615 is a deficient number, since it is larger than the sum of its proper divisors (1623046833).

2649441615 is a wasteful number, since it uses less digits than its factorization.

2649441615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390918.

The product of its digits is 207360, while the sum is 42.

The square root of 2649441615 is about 51472.7269046434. The cubic root of 2649441615 is about 1383.7303007766.

The spelling of 2649441615 in words is "two billion, six hundred forty-nine million, four hundred forty-one thousand, six hundred fifteen".