454447049989 has 2 divisors, whose sum is σ = 454447049990. Its totient is φ = 454447049988.

The previous prime is 454447049939. The next prime is 454447050017. The reversal of 454447049989 is 989940744454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435028627489 + 19418422500 = 659567^2 + 139350^2 .

It is a cyclic number.

It is not a de Polignac number, because 454447049989 - 2²⁷ = 454312832261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454447049909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227223524994 + 227223524995.

It is an arithmetic number, because the mean of its divisors is an integer number (227223524995).

Almost surely, 2^454447049989 is an apocalyptic number.

It is an amenable number.

454447049989 is a deficient number, since it is larger than the sum of its proper divisors (1).

454447049989 is an equidigital number, since it uses as much as digits as its factorization.

454447049989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 209018880, while the sum is 67.

The spelling of 454447049989 in words is "four hundred fifty-four billion, four hundred forty-seven million, forty-nine thousand, nine hundred eighty-nine".