68268168 has 24 divisors (see below), whose sum is σ = 184893150. Its totient is φ = 22756032.

The previous prime is 68268143. The next prime is 68268173. The reversal of 68268168 is 86186286.

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 22867524 = 6738^2 + 4782^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 474013 + ... + 474156.

Almost surely, 2^68268168 is an apocalyptic number.

It is an amenable number.

68268168 is an abundant number, since it is smaller than the sum of its proper divisors (116624982).

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

68268168 is a wasteful number, since it uses less digits than its factorization.

68268168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948181 (or 948174 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 68268168 is about 8262.4553251440. The cubic root of 68268168 is about 408.7013599783.

The spelling of 68268168 in words is "sixty-eight million, two hundred sixty-eight thousand, one hundred sixty-eight".