2605047019 has 2 divisors, whose sum is σ = 2605047020. Its totient is φ = 2605047018.

The previous prime is 2605046959. The next prime is 2605047059. The reversal of 2605047019 is 9107405062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2605047019 - 2⁷ = 2605046891 is a prime.

It is a super-2 number, since 2×2605047019² = 13572539942401572722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2605047059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302523509 + 1302523510.

It is an arithmetic number, because the mean of its divisors is an integer number (1302523510).

Almost surely, 2^2605047019 is an apocalyptic number.

2605047019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605047019 is an equidigital number, since it uses as much as digits as its factorization.

2605047019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2605047019 is about 51039.6612351610. The cubic root of 2605047019 is about 1375.9580354053.

The spelling of 2605047019 in words is "two billion, six hundred five million, forty-seven thousand, nineteen".