2604613643 has 2 divisors, whose sum is σ = 2604613644. Its totient is φ = 2604613642.

The previous prime is 2604613637. The next prime is 2604613703. The reversal of 2604613643 is 3463164062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2604613643 - 2⁶ = 2604613579 is a prime.

It is not a weakly prime, because it can be changed into another prime (2604613343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302306821 + 1302306822.

It is an arithmetic number, because the mean of its divisors is an integer number (1302306822).

Almost surely, 2^2604613643 is an apocalyptic number.

2604613643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2604613643 is an equidigital number, since it uses as much as digits as its factorization.

2604613643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 2604613643 is about 51035.4155758528. The cubic root of 2604613643 is about 1375.8817296476.

The spelling of 2604613643 in words is "two billion, six hundred four million, six hundred thirteen thousand, six hundred forty-three".