216362814689 has 4 divisors (see below), whose sum is σ = 247271788224. Its totient is φ = 185453841156.

The previous prime is 216362814673. The next prime is 216362814719. The reversal of 216362814689 is 986418263612.

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 216362814689 - 2⁴ = 216362814673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216362814649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15454486757 + ... + 15454486770.

It is an arithmetic number, because the mean of its divisors is an integer number (61817947056).

Almost surely, 2^216362814689 is an apocalyptic number.

It is an amenable number.

216362814689 is a deficient number, since it is larger than the sum of its proper divisors (30908973535).

216362814689 is an equidigital number, since it uses as much as digits as its factorization.

216362814689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30908973534.

The product of its digits is 5971968, while the sum is 56.

The spelling of 216362814689 in words is "two hundred sixteen billion, three hundred sixty-two million, eight hundred fourteen thousand, six hundred eighty-nine".