216382844782719 has 32 divisors (see below), whose sum is σ = 321209583206400. Its totient is φ = 143966156384160.

The previous prime is 216382844782697. The next prime is 216382844782747. The reversal of 216382844782719 is 917287448283612.

216382844782719 is a `hidden beast` number, since 2 + 1 + 6 + 3 + 8 + 2 + 84 + 478 + 2 + 71 + 9 = 666.

216382844782719 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 216382844782719 - 2¹⁶ = 216382844717183 is a prime.

It is a super-2 number, since 2×216382844782719² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216382844782219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1633986129 + ... + 1634118549.

It is an arithmetic number, because the mean of its divisors is an integer number (10037799475200).

Almost surely, 2^{216382844782719} is an apocalyptic number.

216382844782719 is a deficient number, since it is larger than the sum of its proper divisors (104826738423681).

216382844782719 is a wasteful number, since it uses less digits than its factorization.

216382844782719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253252 (or 253246 counting only the distinct ones).

The product of its digits is 520224768, while the sum is 72.

The spelling of 216382844782719 in words is "two hundred sixteen trillion, three hundred eighty-two billion, eight hundred forty-four million, seven hundred eighty-two thousand, seven hundred nineteen".