12499537424 has 40 divisors (see below), whose sum is σ = 26425778880. Its totient is φ = 5680252800.

The previous prime is 12499537423. The next prime is 12499537441. The reversal of 12499537424 is 42473599421.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (12499537423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336637 + ... + 1345955.

It is an arithmetic number, because the mean of its divisors is an integer number (660644472).

Almost surely, 2^12499537424 is an apocalyptic number.

It is an amenable number.

12499537424 is an abundant number, since it is smaller than the sum of its proper divisors (13926241456).

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

12499537424 is a wasteful number, since it uses less digits than its factorization.

12499537424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16959 (or 16953 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The spelling of 12499537424 in words is "twelve billion, four hundred ninety-nine million, five hundred thirty-seven thousand, four hundred twenty-four".