1605604364743 has 2 divisors, whose sum is σ = 1605604364744. Its totient is φ = 1605604364742.

The previous prime is 1605604364737. The next prime is 1605604364803. The reversal of 1605604364743 is 3474634065061.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1605604364743 - 2²⁹ = 1605067493831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1605604368743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802802182371 + 802802182372.

It is an arithmetic number, because the mean of its divisors is an integer number (802802182372).

Almost surely, 2^{1605604364743} is an apocalyptic number.

1605604364743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1605604364743 is an equidigital number, since it uses as much as digits as its factorization.

1605604364743 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4354560, while the sum is 49.

The spelling of 1605604364743 in words is "one trillion, six hundred five billion, six hundred four million, three hundred sixty-four thousand, seven hundred forty-three".