67187868 has 96 divisors (see below), whose sum is σ = 177666048. Its totient is φ = 19588800.

The previous prime is 67187851. The next prime is 67187891. The reversal of 67187868 is 86878176.

It is a self number, because there is not a number n which added to its sum of digits gives 67187868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 627871 + ... + 627977.

It is an arithmetic number, because the mean of its divisors is an integer number (1850688).

Almost surely, 2^67187868 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 67187868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88833024).

67187868 is an abundant number, since it is smaller than the sum of its proper divisors (110478180).

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

67187868 is a wasteful number, since it uses less digits than its factorization.

67187868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 261 counting only the distinct ones).

The product of its digits is 903168, while the sum is 51.

The square root of 67187868 is about 8196.8206031363. The cubic root of 67187868 is about 406.5340751412.

The spelling of 67187868 in words is "sixty-seven million, one hundred eighty-seven thousand, eight hundred sixty-eight".