389761669812 has 12 divisors (see below), whose sum is σ = 909443896256. Its totient is φ = 129920556600.

The previous prime is 389761669789. The next prime is 389761669813. The reversal of 389761669812 is 218966167983.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389761669813) 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 3 ways as a sum of consecutive naturals, for example, 16240069564 + ... + 16240069587.

Almost surely, 2^389761669812 is an apocalyptic number.

It is an amenable number.

389761669812 is an abundant number, since it is smaller than the sum of its proper divisors (519682226444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389761669812 is a wasteful number, since it uses less digits than its factorization.

389761669812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32480139158 (or 32480139156 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 66.

The spelling of 389761669812 in words is "three hundred eighty-nine billion, seven hundred sixty-one million, six hundred sixty-nine thousand, eight hundred twelve".