78463245063817 has 16 divisors (see below), whose sum is σ = 82900131995520. Its totient is φ = 74057237625600.

The previous prime is 78463245063809. The next prime is 78463245063823. The reversal of 78463245063817 is 71836054236487.

It is a cyclic number.

It is not a de Polignac number, because 78463245063817 - 2³ = 78463245063809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78463245063887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16055217 + ... + 20364097.

It is an arithmetic number, because the mean of its divisors is an integer number (5181258249720).

Almost surely, 2^{78463245063817} is an apocalyptic number.

It is an amenable number.

78463245063817 is a deficient number, since it is larger than the sum of its proper divisors (4436886931703).

78463245063817 is a wasteful number, since it uses less digits than its factorization.

78463245063817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312464.

The product of its (nonzero) digits is 162570240, while the sum is 64.

The spelling of 78463245063817 in words is "seventy-eight trillion, four hundred sixty-three billion, two hundred forty-five million, sixty-three thousand, eight hundred seventeen".