68758766217 has 40 divisors (see below), whose sum is σ = 104235595200. Its totient is φ = 45160930080.

The previous prime is 68758766207. The next prime is 68758766243. The reversal of 68758766217 is 71266785786.

It is not a de Polignac number, because 68758766217 - 2³⁴ = 51578897033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68758766207) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9963034 + ... + 9969932.

It is an arithmetic number, because the mean of its divisors is an integer number (2605889880).

Almost surely, 2^68758766217 is an apocalyptic number.

It is an amenable number.

68758766217 is a deficient number, since it is larger than the sum of its proper divisors (35476828983).

68758766217 is a wasteful number, since it uses less digits than its factorization.

68758766217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8715 (or 8706 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 63.

The spelling of 68758766217 in words is "sixty-eight billion, seven hundred fifty-eight million, seven hundred sixty-six thousand, two hundred seventeen".