2068558643 has 2 divisors, whose sum is σ = 2068558644. Its totient is φ = 2068558642.

The previous prime is 2068558631. The next prime is 2068558697. The reversal of 2068558643 is 3468558602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2068558643 - 2⁴ = 2068558627 is a prime.

It is not a weakly prime, because it can be changed into another prime (2068558543) 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, 1034279321 + 1034279322.

It is an arithmetic number, because the mean of its divisors is an integer number (1034279322).

Almost surely, 2^2068558643 is an apocalyptic number.

2068558643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068558643 is an equidigital number, since it uses as much as digits as its factorization.

2068558643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The square root of 2068558643 is about 45481.4098616127. The cubic root of 2068558643 is about 1274.1560259559.

The spelling of 2068558643 in words is "two billion, sixty-eight million, five hundred fifty-eight thousand, six hundred forty-three".