12451417361 has 4 divisors (see below), whose sum is σ = 12486690852. Its totient is φ = 12416143872.

The previous prime is 12451417357. The next prime is 12451417367. The reversal of 12451417361 is 16371415421.

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 2218881025 + 10232536336 = 47105^2 + 101156^2 .

It is a cyclic number.

It is not a de Polignac number, because 12451417361 - 2² = 12451417357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12451417367) 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, 17636216 + ... + 17636921.

It is an arithmetic number, because the mean of its divisors is an integer number (3121672713).

Almost surely, 2^12451417361 is an apocalyptic number.

It is an amenable number.

12451417361 is a deficient number, since it is larger than the sum of its proper divisors (35273491).

12451417361 is an equidigital number, since it uses as much as digits as its factorization.

12451417361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35273490.

The product of its digits is 20160, while the sum is 35.

The spelling of 12451417361 in words is "twelve billion, four hundred fifty-one million, four hundred seventeen thousand, three hundred sixty-one".