386165253217 has 2 divisors, whose sum is σ = 386165253218. Its totient is φ = 386165253216.

The previous prime is 386165253179. The next prime is 386165253239. The reversal of 386165253217 is 712352561683.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381814003921 + 4351249296 = 617911^2 + 65964^2 .

It is a cyclic number.

It is not a de Polignac number, because 386165253217 - 2³⁵ = 351805514849 is a prime.

It is not a weakly prime, because it can be changed into another prime (386165253017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193082626608 + 193082626609.

It is an arithmetic number, because the mean of its divisors is an integer number (193082626609).

Almost surely, 2^386165253217 is an apocalyptic number.

It is an amenable number.

386165253217 is a deficient number, since it is larger than the sum of its proper divisors (1).

386165253217 is an equidigital number, since it uses as much as digits as its factorization.

386165253217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1814400, while the sum is 49.

The spelling of 386165253217 in words is "three hundred eighty-six billion, one hundred sixty-five million, two hundred fifty-three thousand, two hundred seventeen".