2068308081 has 48 divisors (see below), whose sum is σ = 3573489600. Its totient is φ = 1178888256.

The previous prime is 2068308079. The next prime is 2068308089. The reversal of 2068308081 is 1808038602.

It is not a de Polignac number, because 2068308081 - 2¹ = 2068308079 is a prime.

It is a super-2 number, since 2×2068308081² = 8555796635859805122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068308089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 584325 + ... + 587853.

It is an arithmetic number, because the mean of its divisors is an integer number (74447700).

Almost surely, 2^2068308081 is an apocalyptic number.

2068308081 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2068308081 is a deficient number, since it is larger than the sum of its proper divisors (1505181519).

2068308081 is a wasteful number, since it uses less digits than its factorization.

2068308081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3995 (or 3982 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 2068308081 is about 45478.6552241818. The cubic root of 2068308081 is about 1274.1045782204.

The spelling of 2068308081 in words is "two billion, sixty-eight million, three hundred eight thousand, eighty-one".