389727323838 has 24 divisors (see below), whose sum is σ = 844792587288. Its totient is φ = 129850125552.

The previous prime is 389727323813. The next prime is 389727323857. The reversal of 389727323838 is 838323727983.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4874445 + ... + 4953752.

It is an arithmetic number, because the mean of its divisors is an integer number (35199691137).

Almost surely, 2^389727323838 is an apocalyptic number.

389727323838 is an abundant number, since it is smaller than the sum of its proper divisors (455065263450).

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

389727323838 is a wasteful number, since it uses less digits than its factorization.

389727323838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9830408 (or 9830405 counting only the distinct ones).

The product of its digits is 73156608, while the sum is 63.

The spelling of 389727323838 in words is "three hundred eighty-nine billion, seven hundred twenty-seven million, three hundred twenty-three thousand, eight hundred thirty-eight".