450212543009 has 2 divisors, whose sum is σ = 450212543010. Its totient is φ = 450212543008.

The previous prime is 450212542991. The next prime is 450212543041. The reversal of 450212543009 is 900345212054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446528659984 + 3683883025 = 668228^2 + 60695^2 .

It is a cyclic number.

It is not a de Polignac number, because 450212543009 - 2¹² = 450212538913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450212543009.

It is not a weakly prime, because it can be changed into another prime (450212543069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225106271504 + 225106271505.

It is an arithmetic number, because the mean of its divisors is an integer number (225106271505).

Almost surely, 2^450212543009 is an apocalyptic number.

It is an amenable number.

450212543009 is a deficient number, since it is larger than the sum of its proper divisors (1).

450212543009 is an equidigital number, since it uses as much as digits as its factorization.

450212543009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 450212543009 in words is "four hundred fifty billion, two hundred twelve million, five hundred forty-three thousand, nine".