680513870 has 16 divisors (see below), whose sum is σ = 1225260000. Its totient is φ = 272131104.

The previous prime is 680513849. The next prime is 680513881. The reversal of 680513870 is 78315086.

680513870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 43184 + ... + 56796.

It is an arithmetic number, because the mean of its divisors is an integer number (76578750).

Almost surely, 2^680513870 is an apocalyptic number.

680513870 is a deficient number, since it is larger than the sum of its proper divisors (544746130).

680513870 is a wasteful number, since it uses less digits than its factorization.

680513870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18619.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 680513870 is about 26086.6607675264. The cubic root of 680513870 is about 879.5873883499.

The spelling of 680513870 in words is "six hundred eighty million, five hundred thirteen thousand, eight hundred seventy".