12308615844 has 96 divisors (see below), whose sum is σ = 33937784832. Its totient is φ = 3397680000.

The previous prime is 12308615833. The next prime is 12308615857. The reversal of 12308615844 is 44851680321.

It is a happy number.

12308615844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 12308615796 and 12308615805.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1717669 + ... + 1724819.

It is an arithmetic number, because the mean of its divisors is an integer number (353518592).

Almost surely, 2^12308615844 is an apocalyptic number.

12308615844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12308615844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16968892416).

12308615844 is an abundant number, since it is smaller than the sum of its proper divisors (21629168988).

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

12308615844 is a wasteful number, since it uses less digits than its factorization.

12308615844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7857 (or 7855 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The spelling of 12308615844 in words is "twelve billion, three hundred eight million, six hundred fifteen thousand, eight hundred forty-four".