678500686204 has 24 divisors (see below), whose sum is σ = 1313063600688. Its totient is φ = 304184615040.

The previous prime is 678500686183. The next prime is 678500686217. The reversal of 678500686204 is 402686005876.

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, 105616447 + ... + 105622870.

It is an arithmetic number, because the mean of its divisors is an integer number (54710983362).

Almost surely, 2^678500686204 is an apocalyptic number.

It is an amenable number.

678500686204 is a deficient number, since it is larger than the sum of its proper divisors (634562914484).

678500686204 is a wasteful number, since it uses less digits than its factorization.

678500686204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211239405 (or 211239403 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 52.

The spelling of 678500686204 in words is "six hundred seventy-eight billion, five hundred million, six hundred eighty-six thousand, two hundred four".