12446015425 has 6 divisors (see below), whose sum is σ = 15433059158. Its totient is φ = 9956812320.

The previous prime is 12446015383. The next prime is 12446015429. The reversal of 12446015425 is 52451064421.

It can be written as a sum of positive squares in 3 ways, for example, as 372181264 + 12073834161 = 19292^2 + 109881^2 .

It is not a de Polignac number, because 12446015425 - 2²⁵ = 12412460993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12446015429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248920284 + ... + 248920333.

Almost surely, 2^12446015425 is an apocalyptic number.

It is an amenable number.

12446015425 is a deficient number, since it is larger than the sum of its proper divisors (2987043733).

12446015425 is an equidigital number, since it uses as much as digits as its factorization.

12446015425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497840627 (or 497840622 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 12446015425 its reverse (52451064421), we get a palindrome (64897079846).

The spelling of 12446015425 in words is "twelve billion, four hundred forty-six million, fifteen thousand, four hundred twenty-five".