678322361860 has 192 divisors, whose sum is σ = 1762622668800. Its totient is φ = 215578713600.

The previous prime is 678322361833. The next prime is 678322361861. The reversal of 678322361860 is 68163223876.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a junction number, because it is equal to n+sod(n) for n = 678322361798 and 678322361807.

It is not an unprimeable number, because it can be changed into a prime (678322361861) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 147748165 + ... + 147752755.

It is an arithmetic number, because the mean of its divisors is an integer number (9180326400).

Almost surely, 2^678322361860 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 678322361860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (881311334400).

678322361860 is an abundant number, since it is smaller than the sum of its proper divisors (1084300306940).

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

678322361860 is a wasteful number, since it uses less digits than its factorization.

678322361860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7362 (or 7360 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 678322361860 in words is "six hundred seventy-eight billion, three hundred twenty-two million, three hundred sixty-one thousand, eight hundred sixty".