12475431413 has 4 divisors (see below), whose sum is σ = 12540071148. Its totient is φ = 12410791680.

The previous prime is 12475431389. The next prime is 12475431421. The reversal of 12475431413 is 31413457421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7530247729 + 4945183684 = 86777^2 + 70322^2 .

It is a cyclic number.

It is not a de Polignac number, because 12475431413 - 2⁶ = 12475431349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12475431013) 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, 32319578 + ... + 32319963.

It is an arithmetic number, because the mean of its divisors is an integer number (3135017787).

Almost surely, 2^12475431413 is an apocalyptic number.

It is an amenable number.

12475431413 is a deficient number, since it is larger than the sum of its proper divisors (64639735).

12475431413 is an equidigital number, since it uses as much as digits as its factorization.

12475431413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64639734.

The product of its digits is 40320, while the sum is 35.

Adding to 12475431413 its reverse (31413457421), we get a palindrome (43888888834).

The spelling of 12475431413 in words is "twelve billion, four hundred seventy-five million, four hundred thirty-one thousand, four hundred thirteen".