389999996906605 has 16 divisors (see below), whose sum is σ = 496624903954560. Its totient is φ = 293376563622208.

The previous prime is 389999996906587. The next prime is 389999996906609. The reversal of 389999996906605 is 506609699999983.

It is a cyclic number.

It is not a de Polignac number, because 389999996906605 - 2⁷ = 389999996906477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 389999996906498 and 389999996906507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389999996906609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28739860342 + ... + 28739873911.

It is an arithmetic number, because the mean of its divisors is an integer number (31039056497160).

Almost surely, 2^{389999996906605} is an apocalyptic number.

It is an amenable number.

389999996906605 is a deficient number, since it is larger than the sum of its proper divisors (106624907047955).

389999996906605 is a wasteful number, since it uses less digits than its factorization.

389999996906605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57479734340.

The product of its (nonzero) digits is 123974556480, while the sum is 97.

The spelling of 389999996906605 in words is "three hundred eighty-nine trillion, nine hundred ninety-nine billion, nine hundred ninety-six million, nine hundred six thousand, six hundred five".