3813216543 has 6 divisors (see below), whose sum is σ = 5507979464. Its totient is φ = 2542144356.

The previous prime is 3813216541. The next prime is 3813216577. The reversal of 3813216543 is 3456123183.

3813216543 is a `hidden beast` number, since 3 + 81 + 32 + 1 + 6 + 543 = 666.

It is not a de Polignac number, because 3813216543 - 2¹ = 3813216541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3813216498 and 3813216507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813216541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211845355 + ... + 211845372.

Almost surely, 2^3813216543 is an apocalyptic number.

3813216543 is a deficient number, since it is larger than the sum of its proper divisors (1694762921).

3813216543 is a wasteful number, since it uses less digits than its factorization.

3813216543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423690733 (or 423690730 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 3813216543 is about 61751.2472991437. The cubic root of 3813216543 is about 1562.2978058406.

The spelling of 3813216543 in words is "three billion, eight hundred thirteen million, two hundred sixteen thousand, five hundred forty-three".