389159939946 has 16 divisors (see below), whose sum is σ = 805158496800. Its totient is φ = 125246877168.

The previous prime is 389159939933. The next prime is 389159940007. The reversal of 389159939946 is 649939951983.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1118275516 + ... + 1118275863.

It is an arithmetic number, because the mean of its divisors is an integer number (50322406050).

Almost surely, 2^389159939946 is an apocalyptic number.

389159939946 is an abundant number, since it is smaller than the sum of its proper divisors (415998556854).

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

389159939946 is a wasteful number, since it uses less digits than its factorization.

389159939946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236551413.

The product of its digits is 510183360, while the sum is 75.

The spelling of 389159939946 in words is "three hundred eighty-nine billion, one hundred fifty-nine million, nine hundred thirty-nine thousand, nine hundred forty-six".