455221806863 has 2 divisors, whose sum is σ = 455221806864. Its totient is φ = 455221806862.

The previous prime is 455221806847. The next prime is 455221806869. The reversal of 455221806863 is 368608122554.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 455221806863 - 2⁴ = 455221806847 is a prime.

It is a super-2 number, since 2×455221806863² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455221806869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227610903431 + 227610903432.

It is an arithmetic number, because the mean of its divisors is an integer number (227610903432).

Almost surely, 2^455221806863 is an apocalyptic number.

455221806863 is a deficient number, since it is larger than the sum of its proper divisors (1).

455221806863 is an equidigital number, since it uses as much as digits as its factorization.

455221806863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 50.

The spelling of 455221806863 in words is "four hundred fifty-five billion, two hundred twenty-one million, eight hundred six thousand, eight hundred sixty-three".