68843068393 has 16 divisors (see below), whose sum is σ = 75249699840. Its totient is φ = 62461270800.

The previous prime is 68843068387. The next prime is 68843068417. The reversal of 68843068393 is 39386034886.

It is a cyclic number.

It is not a de Polignac number, because 68843068393 - 2²⁵ = 68809513961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68843060393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15272446 + ... + 15276952.

It is an arithmetic number, because the mean of its divisors is an integer number (4703106240).

Almost surely, 2^68843068393 is an apocalyptic number.

It is an amenable number.

68843068393 is a deficient number, since it is larger than the sum of its proper divisors (6406631447).

68843068393 is a wasteful number, since it uses less digits than its factorization.

68843068393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6948.

The product of its (nonzero) digits is 17915904, while the sum is 58.

The spelling of 68843068393 in words is "sixty-eight billion, eight hundred forty-three million, sixty-eight thousand, three hundred ninety-three".