78118910771712 has 80 divisors (see below), whose sum is σ = 208139428170432. Its totient is φ = 26036412846080.

The previous prime is 78118910771711. The next prime is 78118910771719. The reversal of 78118910771712 is 21717701981187.

78118910771712 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78118910771712² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78118910771711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9277162 + ... + 15566102.

Almost surely, 2^{78118910771712} is an apocalyptic number.

It is an amenable number.

78118910771712 is an abundant number, since it is smaller than the sum of its proper divisors (130020517398720).

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

78118910771712 is an equidigital number, since it uses as much as digits as its factorization.

78118910771712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6297049 (or 6297033 counting only the distinct ones).

The product of its (nonzero) digits is 2765952, while the sum is 60.

The spelling of 78118910771712 in words is "seventy-eight trillion, one hundred eighteen billion, nine hundred ten million, seven hundred seventy-one thousand, seven hundred twelve".