6004721609 has 2 divisors, whose sum is σ = 6004721610. Its totient is φ = 6004721608.

The previous prime is 6004721587. The next prime is 6004721621. The reversal of 6004721609 is 9061274006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3407290384 + 2597431225 = 58372^2 + 50965^2 .

It is a cyclic number.

It is not a de Polignac number, because 6004721609 - 2²⁰ = 6003673033 is a prime.

It is not a weakly prime, because it can be changed into another prime (6004721209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002360804 + 3002360805.

It is an arithmetic number, because the mean of its divisors is an integer number (3002360805).

Almost surely, 2^6004721609 is an apocalyptic number.

It is an amenable number.

6004721609 is a deficient number, since it is larger than the sum of its proper divisors (1).

6004721609 is an equidigital number, since it uses as much as digits as its factorization.

6004721609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6004721609 is about 77490.1387855255. The cubic root of 6004721609 is about 1817.5971196858.

The spelling of 6004721609 in words is "six billion, four million, seven hundred twenty-one thousand, six hundred nine".