2666382539 has 2 divisors, whose sum is σ = 2666382540. Its totient is φ = 2666382538.

The previous prime is 2666382503. The next prime is 2666382557. The reversal of 2666382539 is 9352836662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2666382539 - 2⁸ = 2666382283 is a prime.

It is not a weakly prime, because it can be changed into another prime (2666382569) 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, 1333191269 + 1333191270.

It is an arithmetic number, because the mean of its divisors is an integer number (1333191270).

Almost surely, 2^2666382539 is an apocalyptic number.

2666382539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666382539 is an equidigital number, since it uses as much as digits as its factorization.

2666382539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 50.

The square root of 2666382539 is about 51637.0268218456. The cubic root of 2666382539 is about 1386.6732961717.

The spelling of 2666382539 in words is "two billion, six hundred sixty-six million, three hundred eighty-two thousand, five hundred thirty-nine".