8454802776449 has 2 divisors, whose sum is σ = 8454802776450. Its totient is φ = 8454802776448.

The previous prime is 8454802776391. The next prime is 8454802776521. The reversal of 8454802776449 is 9446772084548.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7897965950224 + 556836826225 = 2810332^2 + 746215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8454802776449 is a prime.

It is not a weakly prime, because it can be changed into another prime (8454802776349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4227401388224 + 4227401388225.

It is an arithmetic number, because the mean of its divisors is an integer number (4227401388225).

Almost surely, 2^{8454802776449} is an apocalyptic number.

It is an amenable number.

8454802776449 is a deficient number, since it is larger than the sum of its proper divisors (1).

8454802776449 is an equidigital number, since it uses as much as digits as its factorization.

8454802776449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 433520640, while the sum is 68.

The spelling of 8454802776449 in words is "eight trillion, four hundred fifty-four billion, eight hundred two million, seven hundred seventy-six thousand, four hundred forty-nine".