680928178 has 16 divisors (see below), whose sum is σ = 1207558080. Its totient is φ = 281763216.

The previous prime is 680928167. The next prime is 680928181. The reversal of 680928178 is 871829086.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838176 + ... + 838987.

It is an arithmetic number, because the mean of its divisors is an integer number (75472380).

Almost surely, 2^680928178 is an apocalyptic number.

680928178 is a deficient number, since it is larger than the sum of its proper divisors (526629902).

680928178 is a wasteful number, since it uses less digits than its factorization.

680928178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677201.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 680928178 is about 26094.6005526047. The cubic root of 680928178 is about 879.7658545443.

The spelling of 680928178 in words is "six hundred eighty million, nine hundred twenty-eight thousand, one hundred seventy-eight".