854662266449 has 2 divisors, whose sum is σ = 854662266450. Its totient is φ = 854662266448.

The previous prime is 854662266397. The next prime is 854662266487. The reversal of 854662266449 is 944662266458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 723744935824 + 130917330625 = 850732^2 + 361825^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-854662266449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 854662266391 and 854662266400.

It is not a weakly prime, because it can be changed into another prime (854662260449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427331133224 + 427331133225.

It is an arithmetic number, because the mean of its divisors is an integer number (427331133225).

Almost surely, 2^854662266449 is an apocalyptic number.

It is an amenable number.

854662266449 is a deficient number, since it is larger than the sum of its proper divisors (1).

854662266449 is an equidigital number, since it uses as much as digits as its factorization.

854662266449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119439360, while the sum is 62.

Subtracting 854662266449 from its reverse (944662266458), we obtain a palindrome (90000000009).

The spelling of 854662266449 in words is "eight hundred fifty-four billion, six hundred sixty-two million, two hundred sixty-six thousand, four hundred forty-nine".