78016678 has 8 divisors (see below), whose sum is σ = 117142920. Its totient is φ = 38969040.

The previous prime is 78016661. The next prime is 78016681. The reversal of 78016678 is 87661087.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17103 + ... + 21178.

It is an arithmetic number, because the mean of its divisors is an integer number (14642865).

Almost surely, 2^78016678 is an apocalyptic number.

78016678 is a deficient number, since it is larger than the sum of its proper divisors (39126242).

78016678 is a wasteful number, since it uses less digits than its factorization.

78016678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39302.

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 78016678 is about 8832.7050216794. The cubic root of 78016678 is about 427.2963187353.

The spelling of 78016678 in words is "seventy-eight million, sixteen thousand, six hundred seventy-eight".