678337925760 has 384 divisors, whose sum is σ = 2640714148800. Its totient is φ = 164445050880.

The previous prime is 678337925743. The next prime is 678337925789. The reversal of 678337925760 is 67529733876.

678337925760 is a `hidden beast` number, since 6 + 7 + 8 + 3 + 379 + 257 + 6 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1928667 + ... + 2253093.

Almost surely, 2^678337925760 is an apocalyptic number.

678337925760 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678337925760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320357074400).

678337925760 is an abundant number, since it is smaller than the sum of its proper divisors (1962376223040).

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

678337925760 is a wasteful number, since it uses less digits than its factorization.

678337925760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324477 (or 324448 counting only the distinct ones).

The product of its (nonzero) digits is 80015040, while the sum is 63.

The spelling of 678337925760 in words is "six hundred seventy-eight billion, three hundred thirty-seven million, nine hundred twenty-five thousand, seven hundred sixty".