389550918068 has 24 divisors (see below), whose sum is σ = 751226998368. Its totient is φ = 175611504096.

The previous prime is 389550918061. The next prime is 389550918101. The reversal of 389550918068 is 860819055983.

It is a self number, because there is not a number n which added to its sum of digits gives 389550918068.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389550918061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87106646 + ... + 87111117.

It is an arithmetic number, because the mean of its divisors is an integer number (31301124932).

Almost surely, 2^389550918068 is an apocalyptic number.

It is an amenable number.

389550918068 is a deficient number, since it is larger than the sum of its proper divisors (361676080300).

389550918068 is a wasteful number, since it uses less digits than its factorization.

389550918068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174217823 (or 174217821 counting only the distinct ones).

The product of its (nonzero) digits is 18662400, while the sum is 62.

The spelling of 389550918068 in words is "three hundred eighty-nine billion, five hundred fifty million, nine hundred eighteen thousand, sixty-eight".