678543766848 has 224 divisors, whose sum is σ = 2077382200320. Its totient is φ = 216946114560.

The previous prime is 678543766847. The next prime is 678543766877. The reversal of 678543766848 is 848667345876.

It is a happy number.

678543766848 is a `hidden beast` number, since 6 + 7 + 8 + 543 + 76 + 6 + 8 + 4 + 8 = 666.

678543766848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678543766847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5997136 + ... + 6109232.

It is an arithmetic number, because the mean of its divisors is an integer number (9274027680).

Almost surely, 2^678543766848 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 678543766848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038691100160).

678543766848 is an abundant number, since it is smaller than the sum of its proper divisors (1398838433472).

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

678543766848 is a wasteful number, since it uses less digits than its factorization.

678543766848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112262 (or 112246 counting only the distinct ones).

The product of its digits is 1300561920, while the sum is 72.

The spelling of 678543766848 in words is "six hundred seventy-eight billion, five hundred forty-three million, seven hundred sixty-six thousand, eight hundred forty-eight".