389871676836 has 36 divisors (see below), whose sum is σ = 985555544064. Its totient is φ = 129951082800.

The previous prime is 389871676829. The next prime is 389871676853. The reversal of 389871676836 is 638676178983.

389871676836 is a `hidden beast` number, since 389 + 8 + 7 + 167 + 6 + 83 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 551101 + ... + 1040891.

Almost surely, 2^389871676836 is an apocalyptic number.

389871676836 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

389871676836 is an abundant number, since it is smaller than the sum of its proper divisors (595683867228).

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

389871676836 is a wasteful number, since it uses less digits than its factorization.

389871676836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511912 (or 511907 counting only the distinct ones).

The product of its digits is 438939648, while the sum is 72.

The spelling of 389871676836 in words is "three hundred eighty-nine billion, eight hundred seventy-one million, six hundred seventy-six thousand, eight hundred thirty-six".