216023233827 has 4 divisors (see below), whose sum is σ = 288030978440. Its totient is φ = 144015489216.

The previous prime is 216023233807. The next prime is 216023233843. The reversal of 216023233827 is 728332320612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 216023233827 - 2¹² = 216023229731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216023233807) 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, 36003872302 + ... + 36003872307.

It is an arithmetic number, because the mean of its divisors is an integer number (72007744610).

Almost surely, 2^216023233827 is an apocalyptic number.

216023233827 is a deficient number, since it is larger than the sum of its proper divisors (72007744613).

216023233827 is an equidigital number, since it uses as much as digits as its factorization.

216023233827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72007744612.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 216023233827 in words is "two hundred sixteen billion, twenty-three million, two hundred thirty-three thousand, eight hundred twenty-seven".