78878016 has 112 divisors (see below), whose sum is σ = 265054080. Its totient is φ = 22533120.

The previous prime is 78878003. The next prime is 78878027. The reversal of 78878016 is 61087887.

It is a tau number, because it is divible by the number of its divisors (112).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8836 + ... + 15356.

Almost surely, 2^78878016 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 78878016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132527040).

78878016 is an abundant number, since it is smaller than the sum of its proper divisors (186176064).

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

78878016 is a wasteful number, since it uses less digits than its factorization.

78878016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549 (or 6533 counting only the distinct ones).

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

The square root of 78878016 is about 8881.3296301849. The cubic root of 78878016 is about 428.8630791957.

The spelling of 78878016 in words is "seventy-eight million, eight hundred seventy-eight thousand, sixteen".