680000068 has 24 divisors (see below), whose sum is σ = 1374547104. Its totient is φ = 290908800.

The previous prime is 680000059. The next prime is 680000071. The reversal of 680000068 is 860000086.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453798 + ... + 455293.

It is an arithmetic number, because the mean of its divisors is an integer number (57272796).

Almost surely, 2^680000068 is an apocalyptic number.

680000068 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

680000068 is an abundant number, since it is smaller than the sum of its proper divisors (694547036).

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

680000068 is a wasteful number, since it uses less digits than its factorization.

680000068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909123 (or 909121 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 680000068 is about 26076.8109246510. The cubic root of 680000068 is about 879.3659637438.

The spelling of 680000068 in words is "six hundred eighty million, sixty-eight", and thus it is an aban number.