12389915316 has 96 divisors (see below), whose sum is σ = 30908666880. Its totient is φ = 3849356800.

The previous prime is 12389915261. The next prime is 12389915327. The reversal of 12389915316 is 61351998321.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 11355931 + ... + 11357021.

It is an arithmetic number, because the mean of its divisors is an integer number (321965280).

Almost surely, 2^12389915316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12389915316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15454333440).

12389915316 is an abundant number, since it is smaller than the sum of its proper divisors (18518751564).

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

12389915316 is a wasteful number, since it uses less digits than its factorization.

12389915316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605 (or 1603 counting only the distinct ones).

The product of its digits is 349920, while the sum is 48.

The spelling of 12389915316 in words is "twelve billion, three hundred eighty-nine million, nine hundred fifteen thousand, three hundred sixteen".