12453444036 has 96 divisors (see below), whose sum is σ = 35243765760. Its totient is φ = 3771424800.

The previous prime is 12453443983. The next prime is 12453444041. The reversal of 12453444036 is 63044435421.

12453444036 is a `hidden beast` number, since 1 + 245 + 3 + 4 + 4 + 403 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3427941 + ... + 3431571.

It is an arithmetic number, because the mean of its divisors is an integer number (367122560).

Almost surely, 2^12453444036 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 12453444036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17621882880).

12453444036 is an abundant number, since it is smaller than the sum of its proper divisors (22790321724).

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

12453444036 is a wasteful number, since it uses less digits than its factorization.

12453444036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542 (or 6534 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 12453444036 its reverse (63044435421), we get a palindrome (75497879457).

The spelling of 12453444036 in words is "twelve billion, four hundred fifty-three million, four hundred forty-four thousand, thirty-six".