78192488663 has 2 divisors, whose sum is σ = 78192488664. Its totient is φ = 78192488662.

The previous prime is 78192488657. The next prime is 78192488681. The reversal of 78192488663 is 36688429187.

It is a weak prime.

It is an emirp because it is prime and its reverse (36688429187) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78192488663 is a prime.

It is a super-2 number, since 2×78192488663² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78192488596 and 78192488605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78192488063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39096244331 + 39096244332.

It is an arithmetic number, because the mean of its divisors is an integer number (39096244332).

Almost surely, 2^78192488663 is an apocalyptic number.

78192488663 is a deficient number, since it is larger than the sum of its proper divisors (1).

78192488663 is an equidigital number, since it uses as much as digits as its factorization.

78192488663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27869184, while the sum is 62.

The spelling of 78192488663 in words is "seventy-eight billion, one hundred ninety-two million, four hundred eighty-eight thousand, six hundred sixty-three".