681080000 has 70 divisors (see below), whose sum is σ = 1688956236. Its totient is φ = 272416000.

The previous prime is 681079943. The next prime is 681080003. The reversal of 681080000 is 80186.

It is not an unprimeable number, because it can be changed into a prime (681080003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31487 + ... + 48513.

Almost surely, 2^681080000 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 681080000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (844478118).

681080000 is an abundant number, since it is smaller than the sum of its proper divisors (1007876236).

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

681080000 is an equidigital number, since it uses as much as digits as its factorization.

681080000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17059 (or 17034 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 681080000 is about 26097.5094597166. The cubic root of 681080000 is about 879.8312348542.

The spelling of 681080000 in words is "six hundred eighty-one million, eighty thousand".