68778108 has 72 divisors (see below), whose sum is σ = 202954752. Its totient is φ = 19229472.

The previous prime is 68778103. The next prime is 68778109. The reversal of 68778108 is 80187786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68778103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8941 + ... + 14747.

It is an arithmetic number, because the mean of its divisors is an integer number (2818816).

Almost surely, 2^68778108 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 68778108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101477376).

68778108 is an abundant number, since it is smaller than the sum of its proper divisors (134176644).

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

68778108 is a wasteful number, since it uses less digits than its factorization.

68778108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871 (or 5866 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 45.

The square root of 68778108 is about 8293.2567788535. The cubic root of 68778108 is about 409.7164567415.

It can be divided in two parts, 68778 and 108, that added together give a palindrome (68886).

The spelling of 68778108 in words is "sixty-eight million, seven hundred seventy-eight thousand, one hundred eight".