78463086317 has 32 divisors (see below), whose sum is σ = 98526170880. Its totient is φ = 60701921280.

The previous prime is 78463086293. The next prime is 78463086367. The reversal of 78463086317 is 71368036487.

It is not a de Polignac number, because 78463086317 - 2¹² = 78463082221 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78463086367) 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 31 ways as a sum of consecutive naturals, for example, 25010573 + ... + 25013709.

It is an arithmetic number, because the mean of its divisors is an integer number (3078942840).

Almost surely, 2^78463086317 is an apocalyptic number.

78463086317 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

78463086317 is a deficient number, since it is larger than the sum of its proper divisors (20063084563).

78463086317 is a wasteful number, since it uses less digits than its factorization.

78463086317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5381.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 78463086317 in words is "seventy-eight billion, four hundred sixty-three million, eighty-six thousand, three hundred seventeen".