866254184353 has 2 divisors, whose sum is σ = 866254184354. Its totient is φ = 866254184352.

The previous prime is 866254184273. The next prime is 866254184359. The reversal of 866254184353 is 353481452668.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762359489424 + 103894694929 = 873132^2 + 322327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-866254184353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 866254184294 and 866254184303.

It is not a weakly prime, because it can be changed into another prime (866254184359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433127092176 + 433127092177.

It is an arithmetic number, because the mean of its divisors is an integer number (433127092177).

Almost surely, 2^866254184353 is an apocalyptic number.

It is an amenable number.

866254184353 is a deficient number, since it is larger than the sum of its proper divisors (1).

866254184353 is an equidigital number, since it uses as much as digits as its factorization.

866254184353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16588800, while the sum is 55.

The spelling of 866254184353 in words is "eight hundred sixty-six billion, two hundred fifty-four million, one hundred eighty-four thousand, three hundred fifty-three".