12345444036 has 96 divisors (see below), whose sum is σ = 32272732800. Its totient is φ = 4081104000.

The previous prime is 12345444017. The next prime is 12345444037. The reversal of 12345444036 is 63044454321.

12345444036 is a `hidden beast` number, since 12 + 34 + 544 + 40 + 36 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (12345444037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7291206 + ... + 7292898.

It is an arithmetic number, because the mean of its divisors is an integer number (336174300).

Almost surely, 2^12345444036 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 12345444036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16136366400).

12345444036 is an abundant number, since it is smaller than the sum of its proper divisors (19927288764).

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

12345444036 is a wasteful number, since it uses less digits than its factorization.

12345444036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226 (or 2218 counting only the distinct ones).

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

Adding to 12345444036 its reverse (63044454321), we get a palindrome (75389898357).

The spelling of 12345444036 in words is "twelve billion, three hundred forty-five million, four hundred forty-four thousand, thirty-six".