678605708800 has 120 divisors (see below), whose sum is σ = 1689273622872. Its totient is φ = 270154752000.

The previous prime is 678605708783. The next prime is 678605708857. The reversal of 678605708800 is 8807506876.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2575170 + ... + 2826430.

Almost surely, 2^678605708800 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678605708800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844636811436).

678605708800 is an abundant number, since it is smaller than the sum of its proper divisors (1010667914072).

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

678605708800 is a wasteful number, since it uses less digits than its factorization.

678605708800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251500 (or 251479 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 678605708800 in words is "six hundred seventy-eight billion, six hundred five million, seven hundred eight thousand, eight hundred".