2068363865889 has 20 divisors (see below), whose sum is σ = 3089867204116. Its totient is φ = 1378869487776.

The previous prime is 2068363865863. The next prime is 2068363865927. The reversal of 2068363865889 is 9885683638602.

2068363865889 is a `hidden beast` number, since 2 + 0 + 6 + 8 + 3 + 6 + 38 + 6 + 588 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 501943910400 + 1566419955489 = 708480^2 + 1251567^2 .

It is not a de Polignac number, because 2068363865889 - 2¹⁵ = 2068363833121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068363865819) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2606067 + ... + 3305799.

Almost surely, 2^{2068363865889} is an apocalyptic number.

It is an amenable number.

2068363865889 is a deficient number, since it is larger than the sum of its proper divisors (1021503338227).

2068363865889 is an equidigital number, since it uses as much as digits as its factorization.

2068363865889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736238 (or 736229 counting only the distinct ones).

The product of its (nonzero) digits is 716636160, while the sum is 72.

The spelling of 2068363865889 in words is "two trillion, sixty-eight billion, three hundred sixty-three million, eight hundred sixty-five thousand, eight hundred eighty-nine".