2068558549 has 2 divisors, whose sum is σ = 2068558550. Its totient is φ = 2068558548.

The previous prime is 2068558543. The next prime is 2068558573. The reversal of 2068558549 is 9458558602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2016459025 + 52099524 = 44905^2 + 7218^2 .

It is a cyclic number.

It is not a de Polignac number, because 2068558549 - 2¹³ = 2068550357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2068558496 and 2068558505.

It is a congruent number.

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, 1034279274 + 1034279275.

It is an arithmetic number, because the mean of its divisors is an integer number (1034279275).

Almost surely, 2^2068558549 is an apocalyptic number.

It is an amenable number.

2068558549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2068558549 is an equidigital number, since it uses as much as digits as its factorization.

2068558549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456000, while the sum is 52.

The square root of 2068558549 is about 45481.4088282234. The cubic root of 2068558549 is about 1274.1560066557.

The spelling of 2068558549 in words is "two billion, sixty-eight million, five hundred fifty-eight thousand, five hundred forty-nine".