389986862804 has 72 divisors (see below), whose sum is σ = 858354591360. Its totient is φ = 151760727360.

The previous prime is 389986862717. The next prime is 389986862851. The reversal of 389986862804 is 408268689983.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2773934 + ... + 2911130.

Almost surely, 2^389986862804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 389986862804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (429177295680).

389986862804 is an abundant number, since it is smaller than the sum of its proper divisors (468367728556).

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

389986862804 is a wasteful number, since it uses less digits than its factorization.

389986862804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138069 (or 138056 counting only the distinct ones).

The product of its (nonzero) digits is 286654464, while the sum is 71.

The spelling of 389986862804 in words is "three hundred eighty-nine billion, nine hundred eighty-six million, eight hundred sixty-two thousand, eight hundred four".