1678319985158 has 8 divisors (see below), whose sum is σ = 2519950520520. Its totient is φ = 838336478320.

The previous prime is 1678319985157. The next prime is 1678319985203. The reversal of 1678319985158 is 8515899138761.

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

It is a junction number, because it is equal to n+sod(n) for n = 1678319985091 and 1678319985100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678319985157) 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 in 3 ways as a sum of consecutive naturals, for example, 411754583 + ... + 411758658.

It is an arithmetic number, because the mean of its divisors is an integer number (314993815065).

Almost surely, 2^{1678319985158} is an apocalyptic number.

1678319985158 is a deficient number, since it is larger than the sum of its proper divisors (841630535362).

1678319985158 is a wasteful number, since it uses less digits than its factorization.

1678319985158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823514262.

The product of its digits is 130636800, while the sum is 71.

The spelling of 1678319985158 in words is "one trillion, six hundred seventy-eight billion, three hundred nineteen million, nine hundred eighty-five thousand, one hundred fifty-eight".