12500361412 has 72 divisors (see below), whose sum is σ = 27811844928. Its totient is φ = 4811484480.

The previous prime is 12500361403. The next prime is 12500361413. The reversal of 12500361412 is 21416300521.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12500361413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 258978 + ... + 303430.

It is an arithmetic number, because the mean of its divisors is an integer number (386275624).

Almost surely, 2^12500361412 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 12500361412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13905922464).

12500361412 is an abundant number, since it is smaller than the sum of its proper divisors (15311483516).

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

12500361412 is a wasteful number, since it uses less digits than its factorization.

12500361412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44569 (or 44556 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 12500361412 its reverse (21416300521), we get a palindrome (33916661933).

The spelling of 12500361412 in words is "twelve billion, five hundred million, three hundred sixty-one thousand, four hundred twelve".