2609332009 has 2 divisors, whose sum is σ = 2609332010. Its totient is φ = 2609332008.

The previous prime is 2609331983. The next prime is 2609332021. The reversal of 2609332009 is 9002339062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1761648784 + 847683225 = 41972^2 + 29115^2 .

It is a cyclic number.

It is not a de Polignac number, because 2609332009 - 2⁹ = 2609331497 is a prime.

It is a super-2 number, since 2×2609332009² = 13617227066383952162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2609332039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1304666004 + 1304666005.

It is an arithmetic number, because the mean of its divisors is an integer number (1304666005).

Almost surely, 2^2609332009 is an apocalyptic number.

It is an amenable number.

2609332009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2609332009 is an equidigital number, since it uses as much as digits as its factorization.

2609332009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 2609332009 is about 51081.6210490623. The cubic root of 2609332009 is about 1376.7120507981.

The spelling of 2609332009 in words is "two billion, six hundred nine million, three hundred thirty-two thousand, nine".