68910783542198 has 16 divisors (see below), whose sum is σ = 111317560727856. Its totient is φ = 31804936688160.

The previous prime is 68910783542123. The next prime is 68910783542203. The reversal of 68910783542198 is 89124538701986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31811633 + ... + 33908723.

It is an arithmetic number, because the mean of its divisors is an integer number (6957347545491).

It is a 2-persistent number, because it is pandigital, and so is 2⋅68910783542198 = 137821567084396, but 3⋅68910783542198 = 206732350626594 is not.

Almost surely, 2^{68910783542198} is an apocalyptic number.

68910783542198 is a deficient number, since it is larger than the sum of its proper divisors (42406777185658).

68910783542198 is a wasteful number, since it uses less digits than its factorization.

68910783542198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360959.

The product of its (nonzero) digits is 209018880, while the sum is 71.

The spelling of 68910783542198 in words is "sixty-eight trillion, nine hundred ten billion, seven hundred eighty-three million, five hundred forty-two thousand, one hundred ninety-eight".