12378020832 has 120 divisors (see below), whose sum is σ = 36864828000. Its totient is φ = 4073711616.

The previous prime is 12378020813. The next prime is 12378020867. The reversal of 12378020832 is 23802087321.

It is a happy number.

12378020832 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 (36).

It is a congruent number.

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 19 ways as a sum of consecutive naturals, for example, 174544 + ... + 234992.

It is an arithmetic number, because the mean of its divisors is an integer number (307206900).

Almost surely, 2^12378020832 is an apocalyptic number.

12378020832 is a gapful number since it is divisible by the number (12) 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 12378020832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18432414000).

12378020832 is an abundant number, since it is smaller than the sum of its proper divisors (24486807168).

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

12378020832 is an equidigital number, since it uses as much as digits as its factorization.

12378020832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60550 (or 60533 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 12378020832 in words is "twelve billion, three hundred seventy-eight million, twenty thousand, eight hundred thirty-two".