2748212506209 has 4 divisors (see below), whose sum is σ = 3664283341616. Its totient is φ = 1832141670804.

The previous prime is 2748212506147. The next prime is 2748212506219. The reversal of 2748212506209 is 9026052128472.

2748212506209 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2748212506209 - 2⁸ = 2748212505953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2748212506219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458035417699 + ... + 458035417704.

It is an arithmetic number, because the mean of its divisors is an integer number (916070835404).

Almost surely, 2^{2748212506209} is an apocalyptic number.

It is an amenable number.

2748212506209 is a deficient number, since it is larger than the sum of its proper divisors (916070835407).

2748212506209 is an equidigital number, since it uses as much as digits as its factorization.

2748212506209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916070835406.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 2748212506209 in words is "two trillion, seven hundred forty-eight billion, two hundred twelve million, five hundred six thousand, two hundred nine".