678878144 has 84 divisors (see below), whose sum is σ = 1589684400. Its totient is φ = 286755840.

The previous prime is 678878141. The next prime is 678878147. The reversal of 678878144 is 441878876.

678878144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (678878141) and next prime (678878147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678878141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221132 + ... + 224180.

Almost surely, 2^678878144 is an apocalyptic number.

678878144 is a gapful number since it is divisible by the number (64) 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 678878144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794842200).

678878144 is an abundant number, since it is smaller than the sum of its proper divisors (910806256).

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

678878144 is a wasteful number, since it uses less digits than its factorization.

678878144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146 (or 3129 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 53.

The square root of 678878144 is about 26055.2901346348. The cubic root of 678878144 is about 878.8820790567.

The spelling of 678878144 in words is "six hundred seventy-eight million, eight hundred seventy-eight thousand, one hundred forty-four".