2665818487 has 2 divisors, whose sum is σ = 2665818488. Its totient is φ = 2665818486.

The previous prime is 2665818461. The next prime is 2665818511. The reversal of 2665818487 is 7848185662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2665818487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2665810487) 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, 1332909243 + 1332909244.

It is an arithmetic number, because the mean of its divisors is an integer number (1332909244).

Almost surely, 2^2665818487 is an apocalyptic number.

2665818487 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665818487 is an equidigital number, since it uses as much as digits as its factorization.

2665818487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 55.

The square root of 2665818487 is about 51631.5648319901. The cubic root of 2665818487 is about 1386.5755093771.

The spelling of 2665818487 in words is "two billion, six hundred sixty-five million, eight hundred eighteen thousand, four hundred eighty-seven".