12545245444 has 24 divisors (see below), whose sum is σ = 23127910400. Its totient is φ = 5937792480.

The previous prime is 12545245429. The next prime is 12545245553. The reversal of 12545245444 is 44454254521.

It is a junction number, because it is equal to n+sod(n) for n = 12545245397 and 12545245406.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 32674 + ... + 161734.

Almost surely, 2^12545245444 is an apocalyptic number.

It is an amenable number.

12545245444 is a deficient number, since it is larger than the sum of its proper divisors (10582664956).

12545245444 is a wasteful number, since it uses less digits than its factorization.

12545245444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130363 (or 130361 counting only the distinct ones).

The product of its digits is 512000, while the sum is 40.

Adding to 12545245444 its reverse (44454254521), we get a palindrome (56999499965).

The spelling of 12545245444 in words is "twelve billion, five hundred forty-five million, two hundred forty-five thousand, four hundred forty-four".