678209870250 has 1152 divisors, whose sum is σ = 2293128714240. Its totient is φ = 143700480000.

The previous prime is 678209870231. The next prime is 678209870257. The reversal of 678209870250 is 52078902876.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (678209870257) by changing a digit.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 4160796669 + ... + 4160796831.

It is an arithmetic number, because the mean of its divisors is an integer number (1990563120).

Almost surely, 2^678209870250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678209870250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146564357120).

678209870250 is an abundant number, since it is smaller than the sum of its proper divisors (1614918843990).

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

678209870250 is a wasteful number, since it uses less digits than its factorization.

678209870250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 678209870250 in words is "six hundred seventy-eight billion, two hundred nine million, eight hundred seventy thousand, two hundred fifty".