68516359745936 has 20 divisors (see below), whose sum is σ = 134349849986352. Its totient is φ = 33845430717216.

The previous prime is 68516359745893. The next prime is 68516359745971. The reversal of 68516359745936 is 63954795361586.

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, 25796820866 + ... + 25796823521.

Almost surely, 2^{68516359745936} is an apocalyptic number.

It is an amenable number.

68516359745936 is a deficient number, since it is larger than the sum of its proper divisors (65833490240416).

68516359745936 is a wasteful number, since it uses less digits than its factorization.

68516359745936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51593644478 (or 51593644472 counting only the distinct ones).

The product of its digits is 4408992000, while the sum is 77.

The spelling of 68516359745936 in words is "sixty-eight trillion, five hundred sixteen billion, three hundred fifty-nine million, seven hundred forty-five thousand, nine hundred thirty-six".