678537345200 has 240 divisors, whose sum is σ = 1920461415936. Its totient is φ = 227133158400.

The previous prime is 678537345163. The next prime is 678537345203. The reversal of 678537345200 is 2543735876.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (678537345203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20976239 + ... + 21008561.

Almost surely, 2^678537345200 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 678537345200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (960230707968).

678537345200 is an abundant number, since it is smaller than the sum of its proper divisors (1241924070736).

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

678537345200 is a wasteful number, since it uses less digits than its factorization.

678537345200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32732 (or 32721 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 678537345200 in words is "six hundred seventy-eight billion, five hundred thirty-seven million, three hundred forty-five thousand, two hundred".