216339858789 has 8 divisors (see below), whose sum is σ = 290389072800. Its totient is φ = 143258608656.

The previous prime is 216339858767. The next prime is 216339858797. The reversal of 216339858789 is 987858933612.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216339858789 - 2⁷ = 216339858661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216339851789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241990447 + ... + 241991340.

It is an arithmetic number, because the mean of its divisors is an integer number (36298634100).

Almost surely, 2^216339858789 is an apocalyptic number.

It is an amenable number.

216339858789 is a deficient number, since it is larger than the sum of its proper divisors (74049214011).

216339858789 is a wasteful number, since it uses less digits than its factorization.

216339858789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483981939.

The product of its digits is 156764160, while the sum is 69.

The spelling of 216339858789 in words is "two hundred sixteen billion, three hundred thirty-nine million, eight hundred fifty-eight thousand, seven hundred eighty-nine".