68918268 has 36 divisors (see below), whose sum is σ = 166570040. Its totient is φ = 22177344.

The previous prime is 68918249. The next prime is 68918321. The reversal of 68918268 is 86281986.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6678 + ... + 13506.

Almost surely, 2^68918268 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 68918268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83285020).

68918268 is an abundant number, since it is smaller than the sum of its proper divisors (97651772).

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

68918268 is a wasteful number, since it uses less digits than its factorization.

68918268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6894 (or 6863 counting only the distinct ones).

The product of its digits is 331776, while the sum is 48.

The square root of 68918268 is about 8301.7027169130. The cubic root of 68918268 is about 409.9945825181.

The spelling of 68918268 in words is "sixty-eight million, nine hundred eighteen thousand, two hundred sixty-eight".