678399953200 has 120 divisors (see below), whose sum is σ = 1728583327872. Its totient is φ = 254975324160.

The previous prime is 678399953117. The next prime is 678399953213. The reversal of 678399953200 is 2359993876.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4045422 + ... + 4209778.

Almost surely, 2^678399953200 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 678399953200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (864291663936).

678399953200 is an abundant number, since it is smaller than the sum of its proper divisors (1050183374672).

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

678399953200 is a wasteful number, since it uses less digits than its factorization.

678399953200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164999 (or 164988 counting only the distinct ones).

The product of its (nonzero) digits is 22044960, while the sum is 61.

The spelling of 678399953200 in words is "six hundred seventy-eight billion, three hundred ninety-nine million, nine hundred fifty-three thousand, two hundred".