78984546463 has 2 divisors, whose sum is σ = 78984546464. Its totient is φ = 78984546462.

The previous prime is 78984546457. The next prime is 78984546523. The reversal of 78984546463 is 36464548987.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78984546463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78984546395 and 78984546404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78984526463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39492273231 + 39492273232.

It is an arithmetic number, because the mean of its divisors is an integer number (39492273232).

Almost surely, 2^78984546463 is an apocalyptic number.

78984546463 is a deficient number, since it is larger than the sum of its proper divisors (1).

78984546463 is an equidigital number, since it uses as much as digits as its factorization.

78984546463 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 64.

The spelling of 78984546463 in words is "seventy-eight billion, nine hundred eighty-four million, five hundred forty-six thousand, four hundred sixty-three".