2068906289 has 8 divisors (see below), whose sum is σ = 2119969320. Its totient is φ = 2017872000.

The previous prime is 2068906277. The next prime is 2068906297. The reversal of 2068906289 is 9826098602.

It can be written as a sum of positive squares in 4 ways, for example, as 466905664 + 1602000625 = 21608^2 + 40025^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2068906289 - 2²⁴ = 2052129073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2068906249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251339 + ... + 259439.

It is an arithmetic number, because the mean of its divisors is an integer number (264996165).

Almost surely, 2^2068906289 is an apocalyptic number.

It is an amenable number.

2068906289 is a deficient number, since it is larger than the sum of its proper divisors (51063031).

2068906289 is an equidigital number, since it uses as much as digits as its factorization.

2068906289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14371.

The product of its (nonzero) digits is 746496, while the sum is 50.

The square root of 2068906289 is about 45485.2315482729. The cubic root of 2068906289 is about 1274.2274010065.

The spelling of 2068906289 in words is "two billion, sixty-eight million, nine hundred six thousand, two hundred eighty-nine".