2684386062889 has 2 divisors, whose sum is σ = 2684386062890. Its totient is φ = 2684386062888.

The previous prime is 2684386062859. The next prime is 2684386062929. The reversal of 2684386062889 is 9882606834862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1699915300864 + 984470762025 = 1303808^2 + 992205^2 .

It is a cyclic number.

It is not a de Polignac number, because 2684386062889 - 2⁹ = 2684386062377 is a prime.

It is not a weakly prime, because it can be changed into another prime (2684386062859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1342193031444 + 1342193031445.

It is an arithmetic number, because the mean of its divisors is an integer number (1342193031445).

Almost surely, 2^{2684386062889} is an apocalyptic number.

It is an amenable number.

2684386062889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2684386062889 is an equidigital number, since it uses as much as digits as its factorization.

2684386062889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 382205952, while the sum is 70.

The spelling of 2684386062889 in words is "two trillion, six hundred eighty-four billion, three hundred eighty-six million, sixty-two thousand, eight hundred eighty-nine".