454188449773 has 2 divisors, whose sum is σ = 454188449774. Its totient is φ = 454188449772.

The previous prime is 454188449707. The next prime is 454188449777. The reversal of 454188449773 is 377944881454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 452689443684 + 1499006089 = 672822^2 + 38717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454188449773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (454188449777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227094224886 + 227094224887.

It is an arithmetic number, because the mean of its divisors is an integer number (227094224887).

Almost surely, 2^454188449773 is an apocalyptic number.

It is an amenable number.

454188449773 is a deficient number, since it is larger than the sum of its proper divisors (1).

454188449773 is an equidigital number, since it uses as much as digits as its factorization.

454188449773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108380160, while the sum is 64.

The spelling of 454188449773 in words is "four hundred fifty-four billion, one hundred eighty-eight million, four hundred forty-nine thousand, seven hundred seventy-three".