68171112 has 64 divisors (see below), whose sum is σ = 195912000. Its totient is φ = 21938112.

The previous prime is 68171101. The next prime is 68171113. The reversal of 68171112 is 21117186.

It is a super-2 number, since 2×68171112² = 9294601022633088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (68171113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (3061125).

Almost surely, 2^68171112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68171112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97956000).

68171112 is an abundant number, since it is smaller than the sum of its proper divisors (127740888).

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

68171112 is a wasteful number, since it uses less digits than its factorization.

68171112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10927 (or 10917 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 68171112 is about 8256.5799214929. The cubic root of 68171112 is about 408.5075862513.

Adding to 68171112 its reverse (21117186), we get a palindrome (89288298).

The spelling of 68171112 in words is "sixty-eight million, one hundred seventy-one thousand, one hundred twelve".