1678232407389 has 8 divisors (see below), whose sum is σ = 2237679657312. Its totient is φ = 1118803381200.

The previous prime is 1678232407343. The next prime is 1678232407441. The reversal of 1678232407389 is 9837042328761.

It is a happy number.

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

It is not a de Polignac number, because 1678232407389 - 2¹¹ = 1678232405341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1678232407309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4339587 + ... + 4710464.

It is an arithmetic number, because the mean of its divisors is an integer number (279709957164).

Almost surely, 2^{1678232407389} is an apocalyptic number.

It is an amenable number.

1678232407389 is a deficient number, since it is larger than the sum of its proper divisors (559447249923).

1678232407389 is an equidigital number, since it uses as much as digits as its factorization.

1678232407389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111867.

The product of its (nonzero) digits is 24385536, while the sum is 60.

The spelling of 1678232407389 in words is "one trillion, six hundred seventy-eight billion, two hundred thirty-two million, four hundred seven thousand, three hundred eighty-nine".