12023809536 has 80 divisors (see below), whose sum is σ = 32055091200. Its totient is φ = 4005070848.

The previous prime is 12023809477. The next prime is 12023809573. The reversal of 12023809536 is 63590832021.

It is a junction number, because it is equal to n+sod(n) for n = 12023809494 and 12023809503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4174945 + ... + 4177823.

It is an arithmetic number, because the mean of its divisors is an integer number (400688640).

Almost surely, 2^12023809536 is an apocalyptic number.

12023809536 is a gapful number since it is divisible by the number (16) 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 12023809536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16027545600).

12023809536 is an abundant number, since it is smaller than the sum of its proper divisors (20031281664).

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

12023809536 is an equidigital number, since it uses as much as digits as its factorization.

12023809536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5619 (or 5603 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The spelling of 12023809536 in words is "twelve billion, twenty-three million, eight hundred nine thousand, five hundred thirty-six".