965443421985 has 16 divisors (see below), whose sum is σ = 1765382257536. Its totient is φ = 441345564288.

The previous prime is 965443421947. The next prime is 965443421989. The reversal of 965443421985 is 589124344569.

It is not a de Polignac number, because 965443421985 - 2⁹ = 965443421473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (965443421989) 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 15 ways as a sum of consecutive naturals, for example, 4597349524 + ... + 4597349733.

It is an arithmetic number, because the mean of its divisors is an integer number (110336391096).

Almost surely, 2^965443421985 is an apocalyptic number.

It is an amenable number.

965443421985 is a deficient number, since it is larger than the sum of its proper divisors (799938835551).

965443421985 is a wasteful number, since it uses less digits than its factorization.

965443421985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194699272.

The product of its digits is 37324800, while the sum is 60.

The spelling of 965443421985 in words is "nine hundred sixty-five billion, four hundred forty-three million, four hundred twenty-one thousand, nine hundred eighty-five".