216826283075863 has 2 divisors, whose sum is σ = 216826283075864. Its totient is φ = 216826283075862.

The previous prime is 216826283075837. The next prime is 216826283075867. The reversal of 216826283075863 is 368570382628612.

216826283075863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216826283075863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216826283075867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108413141537931 + 108413141537932.

It is an arithmetic number, because the mean of its divisors is an integer number (108413141537932).

Almost surely, 2^{216826283075863} is an apocalyptic number.

216826283075863 is a deficient number, since it is larger than the sum of its proper divisors (1).

216826283075863 is an equidigital number, since it uses as much as digits as its factorization.

216826283075863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 278691840, while the sum is 67.

The spelling of 216826283075863 in words is "two hundred sixteen trillion, eight hundred twenty-six billion, two hundred eighty-three million, seventy-five thousand, eight hundred sixty-three".