216927054853 has 2 divisors, whose sum is σ = 216927054854. Its totient is φ = 216927054852.

The previous prime is 216927054829. The next prime is 216927054893. The reversal of 216927054853 is 358450729612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186790789249 + 30136265604 = 432193^2 + 173598^2 .

It is a cyclic number.

It is not a de Polignac number, because 216927054853 - 2³³ = 208337120261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 216927054853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216927054893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108463527426 + 108463527427.

It is an arithmetic number, because the mean of its divisors is an integer number (108463527427).

It is a 1-persistent number, because it is pandigital, but 2⋅216927054853 = 433854109706 is not.

Almost surely, 2^216927054853 is an apocalyptic number.

It is an amenable number.

216927054853 is a deficient number, since it is larger than the sum of its proper divisors (1).

216927054853 is an equidigital number, since it uses as much as digits as its factorization.

216927054853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 216927054853 in words is "two hundred sixteen billion, nine hundred twenty-seven million, fifty-four thousand, eight hundred fifty-three".