68680507595840 has 336 divisors, whose sum is σ = 194715975750912. Its totient is φ = 22994682568704.

The previous prime is 68680507595813. The next prime is 68680507595881. The reversal of 68680507595840 is 4859570508686.

68680507595840 is digitally balanced in base 3, 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 47 ways as a sum of consecutive naturals, for example, 3872151452 + ... + 3872169188.

It is an arithmetic number, because the mean of its divisors is an integer number (579511832592).

Almost surely, 2^{68680507595840} 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 68680507595840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97357987875456).

68680507595840 is an abundant number, since it is smaller than the sum of its proper divisors (126035468155072).

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

68680507595840 is a wasteful number, since it uses less digits than its factorization.

68680507595840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23554 (or 23537 counting only the distinct ones).

The product of its (nonzero) digits is 580608000, while the sum is 71.

The spelling of 68680507595840 in words is "sixty-eight trillion, six hundred eighty billion, five hundred seven million, five hundred ninety-five thousand, eight hundred forty".