68196775839 has 16 divisors (see below), whose sum is σ = 91065782784. Its totient is φ = 45396187200.

The previous prime is 68196775789. The next prime is 68196775847. The reversal of 68196775839 is 93857769186.

It is not a de Polignac number, because 68196775839 - 2⁸ = 68196775583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68196779839) 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, 11593179 + ... + 11599059.

It is an arithmetic number, because the mean of its divisors is an integer number (5691611424).

Almost surely, 2^68196775839 is an apocalyptic number.

68196775839 is a deficient number, since it is larger than the sum of its proper divisors (22869006945).

68196775839 is a wasteful number, since it uses less digits than its factorization.

68196775839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11038.

The product of its digits is 137168640, while the sum is 69.

The spelling of 68196775839 in words is "sixty-eight billion, one hundred ninety-six million, seven hundred seventy-five thousand, eight hundred thirty-nine".