216433858439 has 8 divisors (see below), whose sum is σ = 223463657472. Its totient is φ = 209407063320.

The previous prime is 216433858423. The next prime is 216433858441. The reversal of 216433858439 is 934858334612.

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

It is a cyclic number.

It is not a de Polignac number, because 216433858439 - 2⁴ = 216433858423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216433858139) 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, 604079 + ... + 893184.

It is an arithmetic number, because the mean of its divisors is an integer number (27932957184).

Almost surely, 2^216433858439 is an apocalyptic number.

216433858439 is a deficient number, since it is larger than the sum of its proper divisors (7029799033).

216433858439 is a wasteful number, since it uses less digits than its factorization.

216433858439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1501957.

The product of its digits is 14929920, while the sum is 56.

The spelling of 216433858439 in words is "two hundred sixteen billion, four hundred thirty-three million, eight hundred fifty-eight thousand, four hundred thirty-nine".