68940175898 has 32 divisors (see below), whose sum is σ = 114715336320. Its totient is φ = 30808008000.

The previous prime is 68940175879. The next prime is 68940175943. The reversal of 68940175898 is 89857104986.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3090248 + ... + 3112476.

It is an arithmetic number, because the mean of its divisors is an integer number (3584854260).

Almost surely, 2^68940175898 is an apocalyptic number.

68940175898 is a deficient number, since it is larger than the sum of its proper divisors (45775160422).

68940175898 is a wasteful number, since it uses less digits than its factorization.

68940175898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24614.

The product of its (nonzero) digits is 34836480, while the sum is 65.

The spelling of 68940175898 in words is "sixty-eight billion, nine hundred forty million, one hundred seventy-five thousand, eight hundred ninety-eight".