2068306509 has 8 divisors (see below), whose sum is σ = 2758298400. Its totient is φ = 1378592816.

The previous prime is 2068306507. The next prime is 2068306519. The reversal of 2068306509 is 9056038602.

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 2068306509 - 2¹ = 2068306507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068306507) 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 in 7 ways as a sum of consecutive naturals, for example, 51534 + ... + 82415.

It is an arithmetic number, because the mean of its divisors is an integer number (344787300).

Almost surely, 2^2068306509 is an apocalyptic number.

It is an amenable number.

2068306509 is a deficient number, since it is larger than the sum of its proper divisors (689991891).

2068306509 is a wasteful number, since it uses less digits than its factorization.

2068306509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139099.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 2068306509 is about 45478.6379413456. The cubic root of 2068306509 is about 1274.1042554296.

The spelling of 2068306509 in words is "two billion, sixty-eight million, three hundred six thousand, five hundred nine".