389671081536 has 56 divisors (see below), whose sum is σ = 1124732445984. Its totient is φ = 118082145280.

The previous prime is 389671081531. The next prime is 389671081543. The reversal of 389671081536 is 635180176983.

It is not an unprimeable number, because it can be changed into a prime (389671081531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92249565 + ... + 92253788.

It is an arithmetic number, because the mean of its divisors is an integer number (20084507964).

Almost surely, 2^389671081536 is an apocalyptic number.

It is an amenable number.

389671081536 is an abundant number, since it is smaller than the sum of its proper divisors (735061364448).

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

389671081536 is a wasteful number, since it uses less digits than its factorization.

389671081536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184503379 (or 184503369 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 389671081536 in words is "three hundred eighty-nine billion, six hundred seventy-one million, eighty-one thousand, five hundred thirty-six".