2886660989 has 2 divisors, whose sum is σ = 2886660990. Its totient is φ = 2886660988.

The previous prime is 2886660949. The next prime is 2886660991. The reversal of 2886660989 is 9890666882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2885516089 + 1144900 = 53717^2 + 1070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2886660989 is a prime.

It is a Sophie Germain prime.

Together with 2886660991, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2886660919) 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, 1443330494 + 1443330495.

It is an arithmetic number, because the mean of its divisors is an integer number (1443330495).

Almost surely, 2^2886660989 is an apocalyptic number.

It is an amenable number.

2886660989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2886660989 is an equidigital number, since it uses as much as digits as its factorization.

2886660989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17915904, while the sum is 62.

The square root of 2886660989 is about 53727.6557184473. The cubic root of 2886660989 is about 1423.8533488786.

The spelling of 2886660989 in words is "two billion, eight hundred eighty-six million, six hundred sixty thousand, nine hundred eighty-nine".