681010200 has 384 divisors, whose sum is σ = 2577960000. Its totient is φ = 164229120.

The previous prime is 681010193. The next prime is 681010223. The reversal of 681010200 is 2010186.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6247746 + ... + 6247854.

Almost surely, 2^681010200 is an apocalyptic number.

681010200 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 681010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1288980000).

681010200 is an abundant number, since it is smaller than the sum of its proper divisors (1896949800).

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

681010200 is a wasteful number, since it uses less digits than its factorization.

681010200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 681010200 is about 26096.1721330926. The cubic root of 681010200 is about 879.8011775343.

Adding to 681010200 its reverse (2010186), we get a palindrome (683020386).

The spelling of 681010200 in words is "six hundred eighty-one million, ten thousand, two hundred".