12456417641 has 2 divisors, whose sum is σ = 12456417642. Its totient is φ = 12456417640.

The previous prime is 12456417637. The next prime is 12456417679. The reversal of 12456417641 is 14671465421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12320112016 + 136305625 = 110996^2 + 11675^2 .

It is a cyclic number.

It is not a de Polignac number, because 12456417641 - 2² = 12456417637 is a prime.

It is not a weakly prime, because it can be changed into another prime (12456417691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6228208820 + 6228208821.

It is an arithmetic number, because the mean of its divisors is an integer number (6228208821).

Almost surely, 2^12456417641 is an apocalyptic number.

It is an amenable number.

12456417641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12456417641 is an equidigital number, since it uses as much as digits as its factorization.

12456417641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 161280, while the sum is 41.

The spelling of 12456417641 in words is "twelve billion, four hundred fifty-six million, four hundred seventeen thousand, six hundred forty-one".