681260800 has 108 divisors (see below), whose sum is σ = 1839710376. Its totient is φ = 247705600.

The previous prime is 681260719. The next prime is 681260803. The reversal of 681260800 is 8062186.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681260803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65562 + ... + 75238.

Almost surely, 2^681260800 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 681260800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919855188).

681260800 is an abundant number, since it is smaller than the sum of its proper divisors (1158449576).

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

681260800 is a wasteful number, since it uses less digits than its factorization.

681260800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9714 (or 9695 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 681260800 is about 26100.9731619340. The cubic root of 681260800 is about 879.9090815160.

The spelling of 681260800 in words is "six hundred eighty-one million, two hundred sixty thousand, eight hundred".