2604202009 has 2 divisors, whose sum is σ = 2604202010. Its totient is φ = 2604202008.

The previous prime is 2604201973. The next prime is 2604202031. The reversal of 2604202009 is 9002024062.

2604202009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1641465225 + 962736784 = 40515^2 + 31028^2 .

It is a cyclic number.

It is not a de Polignac number, because 2604202009 - 2⁷ = 2604201881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2604202039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302101004 + 1302101005.

It is an arithmetic number, because the mean of its divisors is an integer number (1302101005).

Almost surely, 2^2604202009 is an apocalyptic number.

It is an amenable number.

2604202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604202009 is an equidigital number, since it uses as much as digits as its factorization.

2604202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 2604202009 is about 51031.3825895399. The cubic root of 2604202009 is about 1375.8092442280.

The spelling of 2604202009 in words is "two billion, six hundred four million, two hundred two thousand, nine".