68861178 has 40 divisors (see below), whose sum is σ = 155561472. Its totient is φ = 22766184.

The previous prime is 68861161. The next prime is 68861179. The reversal of 68861178 is 87116886.

It is not an unprimeable number, because it can be changed into a prime (68861179) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18901 + ... + 22247.

Almost surely, 2^68861178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68861178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77780736).

68861178 is an abundant number, since it is smaller than the sum of its proper divisors (86700294).

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

68861178 is a wasteful number, since it uses less digits than its factorization.

68861178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3488 (or 3479 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 68861178 is about 8298.2635532984. The cubic root of 68861178 is about 409.8813418274.

The spelling of 68861178 in words is "sixty-eight million, eight hundred sixty-one thousand, one hundred seventy-eight".