12500391448 has 16 divisors (see below), whose sum is σ = 24816953880. Its totient is φ = 5882537088.

The previous prime is 12500391443. The next prime is 12500391457. The reversal of 12500391448 is 84419300521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12500391443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45957186 + ... + 45957457.

Almost surely, 2^12500391448 is an apocalyptic number.

It is an amenable number.

12500391448 is a deficient number, since it is larger than the sum of its proper divisors (12316562432).

12500391448 is a wasteful number, since it uses less digits than its factorization.

12500391448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91914666 (or 91914662 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

Adding to 12500391448 its reverse (84419300521), we get a palindrome (96919691969).

The spelling of 12500391448 in words is "twelve billion, five hundred million, three hundred ninety-one thousand, four hundred forty-eight".