678023426880 has 672 divisors, whose sum is σ = 2508246748800. Its totient is φ = 167601291264.

The previous prime is 678023426863. The next prime is 678023426893. The reversal of 678023426880 is 88624320876.

678023426880 is a `hidden beast` number, since 6 + 78 + 0 + 234 + 268 + 80 = 666.

678023426880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 634258986 + ... + 634260054.

Almost surely, 2^678023426880 is an apocalyptic number.

678023426880 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 678023426880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1254123374400).

678023426880 is an abundant number, since it is smaller than the sum of its proper divisors (1830223321920).

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

678023426880 is a wasteful number, since it uses less digits than its factorization.

678023426880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351 (or 1338 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 678023426880 in words is "six hundred seventy-eight billion, twenty-three million, four hundred twenty-six thousand, eight hundred eighty".