681481348000 has 48 divisors (see below), whose sum is σ = 1674399681864. Its totient is φ = 272592537600.

The previous prime is 681481347961. The next prime is 681481348019. The reversal of 681481348000 is 843184186.

It can be written as a sum of positive squares in 4 ways, for example, as 128355959824 + 553125388176 = 358268^2 + 743724^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85181169 + ... + 85189168.

Almost surely, 2^681481348000 is an apocalyptic number.

It is an amenable number.

681481348000 is an abundant number, since it is smaller than the sum of its proper divisors (992918333864).

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

681481348000 is a wasteful number, since it uses less digits than its factorization.

681481348000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170370362 (or 170370344 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 43.

The spelling of 681481348000 in words is "six hundred eighty-one billion, four hundred eighty-one million, three hundred forty-eight thousand".