450104476649 has 2 divisors, whose sum is σ = 450104476650. Its totient is φ = 450104476648.

The previous prime is 450104476639. The next prime is 450104476651. The reversal of 450104476649 is 946674401054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 297979515625 + 152124961024 = 545875^2 + 390032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450104476649 is a prime.

It is a Sophie Germain prime.

Together with 450104476651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 450104476597 and 450104476606.

It is not a weakly prime, because it can be changed into another prime (450104476639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225052238324 + 225052238325.

It is an arithmetic number, because the mean of its divisors is an integer number (225052238325).

Almost surely, 2^450104476649 is an apocalyptic number.

It is an amenable number.

450104476649 is a deficient number, since it is larger than the sum of its proper divisors (1).

450104476649 is an equidigital number, since it uses as much as digits as its factorization.

450104476649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 450104476649 in words is "four hundred fifty billion, one hundred four million, four hundred seventy-six thousand, six hundred forty-nine".