68378916 has 12 divisors (see below), whose sum is σ = 159550832. Its totient is φ = 22792968.

The previous prime is 68378911. The next prime is 68378941. The reversal of 68378916 is 61987386.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (68378911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849110 + ... + 2849133.

Almost surely, 2^68378916 is an apocalyptic number.

It is an amenable number.

68378916 is an abundant number, since it is smaller than the sum of its proper divisors (91171916).

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

68378916 is a wasteful number, since it uses less digits than its factorization.

68378916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5698250 (or 5698248 counting only the distinct ones).

The product of its digits is 435456, while the sum is 48.

The square root of 68378916 is about 8269.1544912403. The cubic root of 68378916 is about 408.9222457668.

It can be divided in two parts, 6837 and 8916, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 68378916 in words is "sixty-eight million, three hundred seventy-eight thousand, nine hundred sixteen".