389265971616 has 60 divisors (see below), whose sum is σ = 1144820417202. Its totient is φ = 129755323008.

The previous prime is 389265971599. The next prime is 389265971659. The reversal of 389265971616 is 616179562983.

389265971616 is a `hidden beast` number, since 3 + 8 + 9 + 2 + 6 + 5 + 9 + 7 + 1 + 616 = 666.

It can be written as a sum of positive squares in only one way, i.e., 379185008400 + 10080963216 = 615780^2 + 100404^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75087295 + ... + 75092478.

Almost surely, 2^389265971616 is an apocalyptic number.

389265971616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

389265971616 is an abundant number, since it is smaller than the sum of its proper divisors (755554445586).

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

389265971616 is a wasteful number, since it uses less digits than its factorization.

389265971616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150179795 (or 150179778 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 389265971616 in words is "three hundred eighty-nine billion, two hundred sixty-five million, nine hundred seventy-one thousand, six hundred sixteen".