68143375867 has 8 divisors (see below), whose sum is σ = 79535126016. Its totient is φ = 57165871272.

The previous prime is 68143375843. The next prime is 68143375913. The reversal of 68143375867 is 76857334186.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68143375867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68143375067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103561033 + ... + 103561690.

It is an arithmetic number, because the mean of its divisors is an integer number (9941890752).

Almost surely, 2^68143375867 is an apocalyptic number.

68143375867 is a deficient number, since it is larger than the sum of its proper divisors (11391750149).

68143375867 is a wasteful number, since it uses less digits than its factorization.

68143375867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207122777.

The product of its digits is 20321280, while the sum is 58.

The spelling of 68143375867 in words is "sixty-eight billion, one hundred forty-three million, three hundred seventy-five thousand, eight hundred sixty-seven".