389634676389 has 96 divisors (see below), whose sum is σ = 680615936000. Its totient is φ = 209825188992.

The previous prime is 389634676339. The next prime is 389634676393. The reversal of 389634676389 is 983676436983.

It is a happy number.

389634676389 is a `hidden beast` number, since 3 + 89 + 6 + 3 + 467 + 6 + 3 + 89 = 666.

It is not a de Polignac number, because 389634676389 - 2¹⁶ = 389634610853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389634676309) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 304639452 + ... + 304640730.

Almost surely, 2^389634676389 is an apocalyptic number.

It is an amenable number.

389634676389 is a deficient number, since it is larger than the sum of its proper divisors (290981259611).

389634676389 is a wasteful number, since it uses less digits than its factorization.

389634676389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2444 counting only the distinct ones).

The product of its digits is 846526464, while the sum is 72.

The spelling of 389634676389 in words is "three hundred eighty-nine billion, six hundred thirty-four million, six hundred seventy-six thousand, three hundred eighty-nine".