12440134152 has 96 divisors (see below), whose sum is σ = 34254511200. Its totient is φ = 4078052352.

The previous prime is 12440134127. The next prime is 12440134153. The reversal of 12440134152 is 25143104421.

12440134152 is a `hidden beast` number, since 1 + 244 + 0 + 1 + 3 + 415 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (12440134153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1065048 + ... + 1076664.

It is an arithmetic number, because the mean of its divisors is an integer number (356817825).

Almost surely, 2^12440134152 is an apocalyptic number.

12440134152 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 12440134152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17127255600).

12440134152 is an abundant number, since it is smaller than the sum of its proper divisors (21814377048).

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

12440134152 is a wasteful number, since it uses less digits than its factorization.

12440134152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11875 (or 11868 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 12440134152 its reverse (25143104421), we get a palindrome (37583238573).

The spelling of 12440134152 in words is "twelve billion, four hundred forty million, one hundred thirty-four thousand, one hundred fifty-two".