2648444709 has 8 divisors (see below), whose sum is σ = 3531794752. Its totient is φ = 1765362240.

The previous prime is 2648444657. The next prime is 2648444723. The reversal of 2648444709 is 9074448462.

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

It is not a de Polignac number, because 2648444709 - 2⁷ = 2648444581 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 (2648440709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42529 + ... + 84294.

It is an arithmetic number, because the mean of its divisors is an integer number (441474344).

Almost surely, 2^2648444709 is an apocalyptic number.

It is an amenable number.

2648444709 is a deficient number, since it is larger than the sum of its proper divisors (883350043).

2648444709 is a wasteful number, since it uses less digits than its factorization.

2648444709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133787.

The product of its (nonzero) digits is 1548288, while the sum is 48.

The square root of 2648444709 is about 51463.0421661992. The cubic root of 2648444709 is about 1383.5567268327.

The spelling of 2648444709 in words is "two billion, six hundred forty-eight million, four hundred forty-four thousand, seven hundred nine".