78681116342 has 16 divisors (see below), whose sum is σ = 119598336000. Its totient is φ = 38815693800.

The previous prime is 78681116317. The next prime is 78681116389. The reversal of 78681116342 is 24361118687.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57659 + ... + 400857.

It is an arithmetic number, because the mean of its divisors is an integer number (7474896000).

Almost surely, 2^78681116342 is an apocalyptic number.

78681116342 is a deficient number, since it is larger than the sum of its proper divisors (40917219658).

78681116342 is a wasteful number, since it uses less digits than its factorization.

78681116342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344731.

The product of its digits is 387072, while the sum is 47.

The spelling of 78681116342 in words is "seventy-eight billion, six hundred eighty-one million, one hundred sixteen thousand, three hundred forty-two".