78485792703818 has 8 divisors (see below), whose sum is σ = 117728762007648. Its totient is φ = 39242872034604.

The previous prime is 78485792703817. The next prime is 78485792703833. The reversal of 78485792703818 is 81830729758487.

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

It is not an unprimeable number, because it can be changed into a prime (78485792703817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7813646 + ... + 14765657.

It is an arithmetic number, because the mean of its divisors is an integer number (14716095250956).

Almost surely, 2^{78485792703818} is an apocalyptic number.

78485792703818 is a deficient number, since it is larger than the sum of its proper divisors (39242969303830).

78485792703818 is a wasteful number, since it uses less digits than its factorization.

78485792703818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24317308.

The product of its (nonzero) digits is 1517322240, while the sum is 77.

The spelling of 78485792703818 in words is "seventy-eight trillion, four hundred eighty-five billion, seven hundred ninety-two million, seven hundred three thousand, eight hundred eighteen".