680608081012 has 24 divisors (see below), whose sum is σ = 1254046701600. Its totient is φ = 322317451296.

The previous prime is 680608081003. The next prime is 680608081051. The reversal of 680608081012 is 210180806086.

It is a congruent number.

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, 727663 + ... + 1375030.

It is an arithmetic number, because the mean of its divisors is an integer number (52251945900).

Almost surely, 2^680608081012 is an apocalyptic number.

It is an amenable number.

680608081012 is a deficient number, since it is larger than the sum of its proper divisors (573438620588).

680608081012 is a wasteful number, since it uses less digits than its factorization.

680608081012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106975 (or 2106973 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 40.

Adding to 680608081012 its reverse (210180806086), we get a palindrome (890788887098).

The spelling of 680608081012 in words is "six hundred eighty billion, six hundred eight million, eighty-one thousand, twelve".