12389347420 has 12 divisors (see below), whose sum is σ = 26017629624. Its totient is φ = 4955738960.

The previous prime is 12389347391. The next prime is 12389347429. The reversal of 12389347420 is 2474398321.

12389347420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389347429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309733666 + ... + 309733705.

It is an arithmetic number, because the mean of its divisors is an integer number (2168135802).

Almost surely, 2^12389347420 is an apocalyptic number.

12389347420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12389347420 is an abundant number, since it is smaller than the sum of its proper divisors (13628282204).

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

12389347420 is a wasteful number, since it uses less digits than its factorization.

12389347420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619467380 (or 619467378 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 12389347420 in words is "twelve billion, three hundred eighty-nine million, three hundred forty-seven thousand, four hundred twenty".