680071768 has 16 divisors (see below), whose sum is σ = 1276436160. Its totient is φ = 339688800.

The previous prime is 680071759. The next prime is 680071771. The reversal of 680071768 is 867170086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34963 + ... + 50818.

It is an arithmetic number, because the mean of its divisors is an integer number (79777260).

Almost surely, 2^680071768 is an apocalyptic number.

It is an amenable number.

680071768 is a deficient number, since it is larger than the sum of its proper divisors (596364392).

680071768 is a wasteful number, since it uses less digits than its factorization.

680071768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86778 (or 86774 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 680071768 is about 26078.1856730870. The cubic root of 680071768 is about 879.3968697818.

The spelling of 680071768 in words is "six hundred eighty million, seventy-one thousand, seven hundred sixty-eight".