12481307436 has 96 divisors (see below), whose sum is σ = 31822560000. Its totient is φ = 3784584960.

The previous prime is 12481307387. The next prime is 12481307441. The reversal of 12481307436 is 63470318421.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 12481307394 and 12481307403.

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, 3042915 + ... + 3047013.

It is an arithmetic number, because the mean of its divisors is an integer number (331485000).

Almost surely, 2^12481307436 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 12481307436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15911280000).

12481307436 is an abundant number, since it is smaller than the sum of its proper divisors (19341252564).

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

12481307436 is a wasteful number, since it uses less digits than its factorization.

12481307436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399 (or 4397 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 12481307436 in words is "twelve billion, four hundred eighty-one million, three hundred seven thousand, four hundred thirty-six".