216736683473 has 4 divisors (see below), whose sum is σ = 228143877360. Its totient is φ = 205329489588.

The previous prime is 216736683461. The next prime is 216736683479. The reversal of 216736683473 is 374386637612.

216736683473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 216736683473 - 2³⁰ = 215662941649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216736683479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5703596915 + ... + 5703596952.

It is an arithmetic number, because the mean of its divisors is an integer number (57035969340).

Almost surely, 2^216736683473 is an apocalyptic number.

It is an amenable number.

216736683473 is a deficient number, since it is larger than the sum of its proper divisors (11407193887).

216736683473 is a wasteful number, since it uses less digits than its factorization.

216736683473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11407193886.

The product of its digits is 18289152, while the sum is 56.

The spelling of 216736683473 in words is "two hundred sixteen billion, seven hundred thirty-six million, six hundred eighty-three thousand, four hundred seventy-three".