78616686374 has 8 divisors (see below), whose sum is σ = 117994689120. Its totient is φ = 39285123336.

The previous prime is 78616686361. The next prime is 78616686389. The reversal of 78616686374 is 47368661687.

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, 11605694 + ... + 11612465.

It is an arithmetic number, because the mean of its divisors is an integer number (14749336140).

Almost surely, 2^78616686374 is an apocalyptic number.

78616686374 is a deficient number, since it is larger than the sum of its proper divisors (39378002746).

78616686374 is a wasteful number, since it uses less digits than its factorization.

78616686374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23219854.

The product of its digits is 48771072, while the sum is 62.

The spelling of 78616686374 in words is "seventy-eight billion, six hundred sixteen million, six hundred eighty-six thousand, three hundred seventy-four".