867318059820 has 192 divisors, whose sum is σ = 2519385555456. Its totient is φ = 222786017280.

The previous prime is 867318059807. The next prime is 867318059843. The reversal of 867318059820 is 28950813768.

It is a happy number.

867318059820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80803174 + ... + 80813906.

It is an arithmetic number, because the mean of its divisors is an integer number (13121799768).

Almost surely, 2^867318059820 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 867318059820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259692777728).

867318059820 is an abundant number, since it is smaller than the sum of its proper divisors (1652067495636).

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

867318059820 is a wasteful number, since it uses less digits than its factorization.

867318059820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11200 (or 11198 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 57.

The spelling of 867318059820 in words is "eight hundred sixty-seven billion, three hundred eighteen million, fifty-nine thousand, eight hundred twenty".