68171689722 has 8 divisors (see below), whose sum is σ = 136343379456. Its totient is φ = 22723896572.

The previous prime is 68171689669. The next prime is 68171689739. The reversal of 68171689722 is 22798617186.

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

68171689722 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5680974138 + ... + 5680974149.

It is an arithmetic number, because the mean of its divisors is an integer number (17042922432).

Almost surely, 2^68171689722 is an apocalyptic number.

68171689722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68171689722 is a wasteful number, since it uses less digits than its factorization.

68171689722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11361948292.

The product of its digits is 4064256, while the sum is 57.

The spelling of 68171689722 in words is "sixty-eight billion, one hundred seventy-one million, six hundred eighty-nine thousand, seven hundred twenty-two".