68341131985 has 16 divisors (see below), whose sum is σ = 94266752256. Its totient is φ = 46591604928.

The previous prime is 68341131961. The next prime is 68341131997. The reversal of 68341131985 is 58913114386.

It is a cyclic number.

It is not a de Polignac number, because 68341131985 - 2¹¹ = 68341129937 is a prime.

It is a Duffinian 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, 5637309 + ... + 5649418.

It is an arithmetic number, because the mean of its divisors is an integer number (5891672016).

Almost surely, 2^68341131985 is an apocalyptic number.

It is an amenable number.

68341131985 is a deficient number, since it is larger than the sum of its proper divisors (25925620271).

68341131985 is a wasteful number, since it uses less digits than its factorization.

68341131985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11286912.

The product of its digits is 622080, while the sum is 49.

The spelling of 68341131985 in words is "sixty-eight billion, three hundred forty-one million, one hundred thirty-one thousand, nine hundred eighty-five".