680068068 has 48 divisors (see below), whose sum is σ = 1684267200. Its totient is φ = 212834304.

The previous prime is 680068021. The next prime is 680068087. The reversal of 680068068 is 860860086.

It is a super-2 number, since 2×680068068² = 924985154226505248, which contains 22 as substring.

680068068 is a modest number, since divided by 68068 gives 680 as remainder.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84483 + ... + 92181.

It is an arithmetic number, because the mean of its divisors is an integer number (35088900).

Almost surely, 2^680068068 is an apocalyptic number.

680068068 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680068068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (842133600).

680068068 is an abundant number, since it is smaller than the sum of its proper divisors (1004199132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680068068 is a wasteful number, since it uses less digits than its factorization.

680068068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8156 (or 8154 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 680068068 is about 26078.1147324725. The cubic root of 680068068 is about 879.3952749627.

The spelling of 680068068 in words is "six hundred eighty million, sixty-eight thousand, sixty-eight".