68677816672 has 24 divisors (see below), whose sum is σ = 135241378272. Its totient is φ = 34330800000.

The previous prime is 68677816589. The next prime is 68677816687. The reversal of 68677816672 is 27661877686.

68677816672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114579 + ... + 387922.

It is an arithmetic number, because the mean of its divisors is an integer number (5635057428).

Almost surely, 2^68677816672 is an apocalyptic number.

It is an amenable number.

68677816672 is a deficient number, since it is larger than the sum of its proper divisors (66563561600).

68677816672 is a wasteful number, since it uses less digits than its factorization.

68677816672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506782 (or 506774 counting only the distinct ones).

The product of its digits is 56899584, while the sum is 64.

The spelling of 68677816672 in words is "sixty-eight billion, six hundred seventy-seven million, eight hundred sixteen thousand, six hundred seventy-two".