678143673334 has 8 divisors (see below), whose sum is σ = 1017332875440. Its totient is φ = 339032714856.

The previous prime is 678143673299. The next prime is 678143673379. The reversal of 678143673334 is 433376341876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19539234 + ... + 19573909.

It is an arithmetic number, because the mean of its divisors is an integer number (127166609430).

Almost surely, 2^678143673334 is an apocalyptic number.

678143673334 is a deficient number, since it is larger than the sum of its proper divisors (339189202106).

678143673334 is a wasteful number, since it uses less digits than its factorization.

678143673334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39121814.

The product of its digits is 18289152, while the sum is 55.

The spelling of 678143673334 in words is "six hundred seventy-eight billion, one hundred forty-three million, six hundred seventy-three thousand, three hundred thirty-four".