78463036288823 has 4 divisors (see below), whose sum is σ = 79792918259880. Its totient is φ = 77133154317768.

The previous prime is 78463036288811. The next prime is 78463036288829. The reversal of 78463036288823 is 32888263036487.

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 78463036288823 - 2¹⁶ = 78463036223287 is a prime.

It is a super-2 number, since 2×78463036288823² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78463036288829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664940985440 + ... + 664940985557.

It is an arithmetic number, because the mean of its divisors is an integer number (19948229564970).

Almost surely, 2^{78463036288823} is an apocalyptic number.

78463036288823 is a deficient number, since it is larger than the sum of its proper divisors (1329881971057).

78463036288823 is a wasteful number, since it uses less digits than its factorization.

78463036288823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329881971056.

The product of its (nonzero) digits is 445906944, while the sum is 68.

The spelling of 78463036288823 in words is "seventy-eight trillion, four hundred sixty-three billion, thirty-six million, two hundred eighty-eight thousand, eight hundred twenty-three".