68378814 has 36 divisors (see below), whose sum is σ = 172344744. Its totient is φ = 19536552.

The previous prime is 68378797. The next prime is 68378831. The reversal of 68378814 is 41887386.

It is an interprime number because it is at equal distance from previous prime (68378797) and next prime (68378831).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68378814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 37882 + ... + 39645.

It is an arithmetic number, because the mean of its divisors is an integer number (4787354).

Almost surely, 2^68378814 is an apocalyptic number.

68378814 is an abundant number, since it is smaller than the sum of its proper divisors (103965930).

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

68378814 is a wasteful number, since it uses less digits than its factorization.

68378814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77549 (or 77539 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 68378814 is about 8269.1483237393. The cubic root of 68378814 is about 408.9220424386.

It can be divided in two parts, 6837 and 8814, that added together give a palindrome (15651).

The spelling of 68378814 in words is "sixty-eight million, three hundred seventy-eight thousand, eight hundred fourteen".