678545326272 has 224 divisors, whose sum is σ = 2023293026304. Its totient is φ = 198830822400.

The previous prime is 678545326229. The next prime is 678545326279. The reversal of 678545326272 is 272623545876.

It is not an unprimeable number, because it can be changed into a prime (678545326279) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 103638903 + ... + 103645449.

Almost surely, 2^678545326272 is an apocalyptic number.

678545326272 is a gapful number since it is divisible by the number (62) 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 678545326272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011646513152).

678545326272 is an abundant number, since it is smaller than the sum of its proper divisors (1344747700032).

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

678545326272 is a wasteful number, since it uses less digits than its factorization.

678545326272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8187 (or 8177 counting only the distinct ones).

The product of its digits is 33868800, while the sum is 57.

The spelling of 678545326272 in words is "six hundred seventy-eight billion, five hundred forty-five million, three hundred twenty-six thousand, two hundred seventy-two".