678143673379 has 2 divisors, whose sum is σ = 678143673380. Its totient is φ = 678143673378.

The previous prime is 678143673299. The next prime is 678143673409. The reversal of 678143673379 is 973376341876.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678143673379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 678143673379.

It is not a weakly prime, because it can be changed into another prime (678143073379) 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, 339071836689 + 339071836690.

It is an arithmetic number, because the mean of its divisors is an integer number (339071836690).

Almost surely, 2^678143673379 is an apocalyptic number.

678143673379 is a deficient number, since it is larger than the sum of its proper divisors (1).

678143673379 is an equidigital number, since it uses as much as digits as its factorization.

678143673379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96018048, while the sum is 64.

The spelling of 678143673379 in words is "six hundred seventy-eight billion, one hundred forty-three million, six hundred seventy-three thousand, three hundred seventy-nine".