2731889569 has 2 divisors, whose sum is σ = 2731889570. Its totient is φ = 2731889568.

The previous prime is 2731889549. The next prime is 2731889623. The reversal of 2731889569 is 9659881372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1903140625 + 828748944 = 43625^2 + 28788^2 .

It is a cyclic number.

It is not a de Polignac number, because 2731889569 - 2¹⁹ = 2731365281 is a prime.

It is a super-2 number, since 2×2731889569² = 14926441234422011522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2731889519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1365944784 + 1365944785.

It is an arithmetic number, because the mean of its divisors is an integer number (1365944785).

Almost surely, 2^2731889569 is an apocalyptic number.

It is an amenable number.

2731889569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2731889569 is an equidigital number, since it uses as much as digits as its factorization.

2731889569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 58.

The square root of 2731889569 is about 52267.4809896172. The cubic root of 2731889569 is about 1397.9373654827.

The spelling of 2731889569 in words is "two billion, seven hundred thirty-one million, eight hundred eighty-nine thousand, five hundred sixty-nine".