678484984763 has 2 divisors, whose sum is σ = 678484984764. Its totient is φ = 678484984762.

The previous prime is 678484984673. The next prime is 678484984829. The reversal of 678484984763 is 367489484876.

Together with previous prime (678484984673) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 678484984763 - 2¹⁰ = 678484983739 is a prime.

It is not a weakly prime, because it can be changed into another prime (678484284763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339242492381 + 339242492382.

It is an arithmetic number, because the mean of its divisors is an integer number (339242492382).

Almost surely, 2^678484984763 is an apocalyptic number.

678484984763 is a deficient number, since it is larger than the sum of its proper divisors (1).

678484984763 is an equidigital number, since it uses as much as digits as its factorization.

678484984763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1560674304, while the sum is 74.

The spelling of 678484984763 in words is "six hundred seventy-eight billion, four hundred eighty-four million, nine hundred eighty-four thousand, seven hundred sixty-three".