678327091200 has 1728 divisors, whose sum is σ = 2948920007040. Its totient is φ = 150994944000.

The previous prime is 678327091177. The next prime is 678327091229. The reversal of 678327091200 is 2190723876.

It is a tau number, because it is divible by the number of its divisors (1728).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16544563180 + ... + 16544563220.

It is an arithmetic number, because the mean of its divisors is an integer number (1706550930).

Almost surely, 2^678327091200 is an apocalyptic number.

678327091200 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 678327091200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474460003520).

678327091200 is an abundant number, since it is smaller than the sum of its proper divisors (2270592915840).

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

678327091200 is a wasteful number, since it uses less digits than its factorization.

678327091200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 678327091200 in words is "six hundred seventy-eight billion, three hundred twenty-seven million, ninety-one thousand, two hundred".