78465324218263 has 4 divisors (see below), whose sum is σ = 79083161416960. Its totient is φ = 77847487019568.

The previous prime is 78465324218261. The next prime is 78465324218279. The reversal of 78465324218263 is 36281242356487.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 78465324218263 - 2¹ = 78465324218261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78465324218261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 308918599158 + ... + 308918599411.

It is an arithmetic number, because the mean of its divisors is an integer number (19770790354240).

Almost surely, 2^{78465324218263} is an apocalyptic number.

78465324218263 is a deficient number, since it is larger than the sum of its proper divisors (617837198697).

78465324218263 is a wasteful number, since it uses less digits than its factorization.

78465324218263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617837198696.

The product of its digits is 92897280, while the sum is 61.

The spelling of 78465324218263 in words is "seventy-eight trillion, four hundred sixty-five billion, three hundred twenty-four million, two hundred eighteen thousand, two hundred sixty-three".