216829054073 has 2 divisors, whose sum is σ = 216829054074. Its totient is φ = 216829054072.

The previous prime is 216829054051. The next prime is 216829054087. The reversal of 216829054073 is 370450928612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161421543529 + 55407510544 = 401773^2 + 235388^2 .

It is a cyclic number.

It is not a de Polignac number, because 216829054073 - 2²⁰ = 216828005497 is a prime.

It is not a weakly prime, because it can be changed into another prime (216829054373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108414527036 + 108414527037.

It is an arithmetic number, because the mean of its divisors is an integer number (108414527037).

It is a 1-persistent number, because it is pandigital, but 2⋅216829054073 = 433658108146 is not.

Almost surely, 2^216829054073 is an apocalyptic number.

It is an amenable number.

216829054073 is a deficient number, since it is larger than the sum of its proper divisors (1).

216829054073 is an equidigital number, since it uses as much as digits as its factorization.

216829054073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 216829054073 in words is "two hundred sixteen billion, eight hundred twenty-nine million, fifty-four thousand, seventy-three".