68198933989186 has 32 divisors (see below), whose sum is σ = 137351699227008. Its totient is φ = 24527089146240.

The previous prime is 68198933989183. The next prime is 68198933989243.

68198933989186 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×68198933989186² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68198933989097 and 68198933989106.

It is not an unprimeable number, because it can be changed into a prime (68198933989181) 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, 17032698795 + ... + 17032702798.

It is an arithmetic number, because the mean of its divisors is an integer number (4292240600844).

Almost surely, 2^{68198933989186} is an apocalyptic number.

68198933989186 is an abundant number, since it is smaller than the sum of its proper divisors (69152765237822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68198933989186 is a wasteful number, since it uses less digits than its factorization.

68198933989186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34065401626.

The product of its digits is 8707129344, while the sum is 88.

The spelling of 68198933989186 in words is "sixty-eight trillion, one hundred ninety-eight billion, nine hundred thirty-three million, nine hundred eighty-nine thousand, one hundred eighty-six".