12436664724 has 96 divisors (see below), whose sum is σ = 35210004480. Its totient is φ = 3764872800.

The previous prime is 12436664717. The next prime is 12436664743. The reversal of 12436664724 is 42746663421.

It is a self number, because there is not a number n which added to its sum of digits gives 12436664724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305619 + ... + 1315109.

It is an arithmetic number, because the mean of its divisors is an integer number (366770880).

Almost surely, 2^12436664724 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 12436664724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17605002240).

12436664724 is an abundant number, since it is smaller than the sum of its proper divisors (22773339756).

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

12436664724 is a wasteful number, since it uses less digits than its factorization.

12436664724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10618 (or 10610 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The spelling of 12436664724 in words is "twelve billion, four hundred thirty-six million, six hundred sixty-four thousand, seven hundred twenty-four".