681755706048 has 56 divisors (see below), whose sum is σ = 1803987575152. Its totient is φ = 227229778944.

The previous prime is 681755706031. The next prime is 681755706119. The reversal of 681755706048 is 840607557186.

It is a happy number.

681755706048 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 7 ways as a sum of consecutive naturals, for example, 1867086 + ... + 2202162.

It is an arithmetic number, because the mean of its divisors is an integer number (32214063842).

Almost surely, 2^681755706048 is an apocalyptic number.

It is an amenable number.

681755706048 is an abundant number, since it is smaller than the sum of its proper divisors (1122231869104).

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

681755706048 is a wasteful number, since it uses less digits than its factorization.

681755706048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345689 (or 345679 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 681755706048 in words is "six hundred eighty-one billion, seven hundred fifty-five million, seven hundred six thousand, forty-eight".