2578704767 has 2 divisors, whose sum is σ = 2578704768. Its totient is φ = 2578704766.

The previous prime is 2578704749. The next prime is 2578704827. The reversal of 2578704767 is 7674078752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2578704767 - 2⁶ = 2578704703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2578701767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1289352383 + 1289352384.

It is an arithmetic number, because the mean of its divisors is an integer number (1289352384).

Almost surely, 2^2578704767 is an apocalyptic number.

2578704767 is a deficient number, since it is larger than the sum of its proper divisors (1).

2578704767 is an equidigital number, since it uses as much as digits as its factorization.

2578704767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4609920, while the sum is 53.

The square root of 2578704767 is about 50780.9488587994. The cubic root of 2578704767 is about 1371.3044153689.

The spelling of 2578704767 in words is "two billion, five hundred seventy-eight million, seven hundred four thousand, seven hundred sixty-seven".