2909422724209 has 9 divisors (see below), whose sum is σ = 3041460229899. Its totient is φ = 2782888558560.

The previous prime is 2909422724183. The next prime is 2909422724227. The reversal of 2909422724209 is 9024272249092.

The square root of 2909422724209 is 1705703.

It is a perfect power (a square), and thus also a powerful number.

2909422724209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1970926786609 + 938495937600 = 1403897^2 + 968760^2 .

It is not a de Polignac number, because 2909422724209 - 2⁷ = 2909422724081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2909422722209) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 39194089 + ... + 39268249.

Almost surely, 2^{2909422724209} is an apocalyptic number.

2909422724209 is the 1705703-rd square number.

2909422724209 is the 852852-nd centered octagonal number.

It is an amenable number.

2909422724209 is a deficient number, since it is larger than the sum of its proper divisors (132037505690).

2909422724209 is an frugal number, since it uses more digits than its factorization.

2909422724209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148368 (or 74184 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 2909422724209 in words is "two trillion, nine hundred nine billion, four hundred twenty-two million, seven hundred twenty-four thousand, two hundred nine".