454855626558449 has 2 divisors, whose sum is σ = 454855626558450. Its totient is φ = 454855626558448.

The previous prime is 454855626558427. The next prime is 454855626558469. The reversal of 454855626558449 is 944855626558454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 444602822558449 + 10252804000000 = 21085607^2 + 3202000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-454855626558449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (454855626558469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227427813279224 + 227427813279225.

It is an arithmetic number, because the mean of its divisors is an integer number (227427813279225).

Almost surely, 2^{454855626558449} is an apocalyptic number.

It is an amenable number.

454855626558449 is a deficient number, since it is larger than the sum of its proper divisors (1).

454855626558449 is an equidigital number, since it uses as much as digits as its factorization.

454855626558449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33177600000, while the sum is 80.

The spelling of 454855626558449 in words is "four hundred fifty-four trillion, eight hundred fifty-five billion, six hundred twenty-six million, five hundred fifty-eight thousand, four hundred forty-nine".