12445614641 has 2 divisors, whose sum is σ = 12445614642. Its totient is φ = 12445614640.

The previous prime is 12445614589. The next prime is 12445614697. The reversal of 12445614641 is 14641654421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9772311025 + 2673303616 = 98855^2 + 51704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12445614641 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12445614595 and 12445614604.

It is not a weakly prime, because it can be changed into another prime (12445664641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222807320 + 6222807321.

It is an arithmetic number, because the mean of its divisors is an integer number (6222807321).

Almost surely, 2^12445614641 is an apocalyptic number.

It is an amenable number.

12445614641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12445614641 is an equidigital number, since it uses as much as digits as its factorization.

12445614641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 38.

The spelling of 12445614641 in words is "twelve billion, four hundred forty-five million, six hundred fourteen thousand, six hundred forty-one".