12432445015 has 32 divisors (see below), whose sum is σ = 15999197760. Its totient is φ = 9241344000.

The previous prime is 12432444991. The next prime is 12432445019. The reversal of 12432445015 is 51054423421.

It is not a de Polignac number, because 12432445015 - 2⁹ = 12432444503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432445019) 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, 3251805 + ... + 3255625.

It is an arithmetic number, because the mean of its divisors is an integer number (499974930).

Almost surely, 2^12432445015 is an apocalyptic number.

12432445015 is a deficient number, since it is larger than the sum of its proper divisors (3566752745).

12432445015 is a wasteful number, since it uses less digits than its factorization.

12432445015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12432445015 its reverse (51054423421), we get a palindrome (63486868436).

The spelling of 12432445015 in words is "twelve billion, four hundred thirty-two million, four hundred forty-five thousand, fifteen".