68939693986 has 8 divisors (see below), whose sum is σ = 104198927184. Its totient is φ = 34206718260.

The previous prime is 68939693941. The next prime is 68939694011.

68939693986 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 131564040 + ... + 131564563.

It is an arithmetic number, because the mean of its divisors is an integer number (13024865898).

Almost surely, 2^68939693986 is an apocalyptic number.

68939693986 is a deficient number, since it is larger than the sum of its proper divisors (35259233198).

68939693986 is a wasteful number, since it uses less digits than its factorization.

68939693986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263128736.

The product of its digits is 816293376, while the sum is 76.

The spelling of 68939693986 in words is "sixty-eight billion, nine hundred thirty-nine million, six hundred ninety-three thousand, nine hundred eighty-six".