389016685922 has 18 divisors (see below), whose sum is σ = 619893042753. Its totient is φ = 183059619232.

The previous prime is 389016685831. The next prime is 389016685933. The reversal of 389016685922 is 229586610983.

It can be written as a sum of positive squares in 2 ways, for example, as 356037762721 + 32978923201 = 596689^2 + 181601^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=441031.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 14982083 + ... + 15008025.

Almost surely, 2^389016685922 is an apocalyptic number.

389016685922 is a deficient number, since it is larger than the sum of its proper divisors (230876356831).

389016685922 is an frugal number, since it uses more digits than its factorization.

389016685922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51922 (or 25962 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 59.

The spelling of 389016685922 in words is "three hundred eighty-nine billion, sixteen million, six hundred eighty-five thousand, nine hundred twenty-two".