2649979799 has 8 divisors (see below), whose sum is σ = 2910733440. Its totient is φ = 2401354296.

The previous prime is 2649979793. The next prime is 2649979823. The reversal of 2649979799 is 9979799462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2649979799 - 2¹² = 2649975703 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 (2649979793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3031577 + ... + 3032450.

It is an arithmetic number, because the mean of its divisors is an integer number (363841680).

Almost surely, 2^2649979799 is an apocalyptic number.

2649979799 is a deficient number, since it is larger than the sum of its proper divisors (260753641).

2649979799 is a wasteful number, since it uses less digits than its factorization.

2649979799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6064069.

The product of its digits is 138883248, while the sum is 71.

The square root of 2649979799 is about 51477.9544951040. The cubic root of 2649979799 is about 1383.8239873211.

The spelling of 2649979799 in words is "two billion, six hundred forty-nine million, nine hundred seventy-nine thousand, seven hundred ninety-nine".