78868116 has 36 divisors (see below), whose sum is σ = 200491200. Its totient is φ = 26140368.

The previous prime is 78868109. The next prime is 78868147. The reversal of 78868116 is 61186887.

It is a tau number, because it is divible by the number of its divisors (36).

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, 325 + ... + 12563.

It is an arithmetic number, because the mean of its divisors is an integer number (5569200).

Almost surely, 2^78868116 is an apocalyptic number.

It is an amenable number.

78868116 is an abundant number, since it is smaller than the sum of its proper divisors (121623084).

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

78868116 is a wasteful number, since it uses less digits than its factorization.

78868116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12428 (or 12423 counting only the distinct ones).

The product of its digits is 129024, while the sum is 45.

The square root of 78868116 is about 8880.7722637167. The cubic root of 78868116 is about 428.8451362067.

The spelling of 78868116 in words is "seventy-eight million, eight hundred sixty-eight thousand, one hundred sixteen".