78518316 has 12 divisors (see below), whose sum is σ = 183209432. Its totient is φ = 26172768.

The previous prime is 78518303. The next prime is 78518327. The reversal of 78518316 is 61381587.

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

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 3 ways as a sum of consecutive naturals, for example, 3271585 + ... + 3271608.

Almost surely, 2^78518316 is an apocalyptic number.

It is an amenable number.

78518316 is an abundant number, since it is smaller than the sum of its proper divisors (104691116).

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

78518316 is a wasteful number, since it uses less digits than its factorization.

78518316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543200 (or 6543198 counting only the distinct ones).

The product of its digits is 40320, while the sum is 39.

The square root of 78518316 is about 8861.0561447268. The cubic root of 78518316 is about 428.2101844172.

The spelling of 78518316 in words is "seventy-eight million, five hundred eighteen thousand, three hundred sixteen".