450809453761 has 2 divisors, whose sum is σ = 450809453762. Its totient is φ = 450809453760.

The previous prime is 450809453719. The next prime is 450809453797. The reversal of 450809453761 is 167354908054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 423462547600 + 27346906161 = 650740^2 + 165369^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450809453761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450809453699 and 450809453708.

It is not a weakly prime, because it can be changed into another prime (450809453701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225404726880 + 225404726881.

It is an arithmetic number, because the mean of its divisors is an integer number (225404726881).

Almost surely, 2^450809453761 is an apocalyptic number.

It is an amenable number.

450809453761 is a deficient number, since it is larger than the sum of its proper divisors (1).

450809453761 is an equidigital number, since it uses as much as digits as its factorization.

450809453761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 450809453761 in words is "four hundred fifty billion, eight hundred nine million, four hundred fifty-three thousand, seven hundred sixty-one".