3218494943 has 2 divisors, whose sum is σ = 3218494944. Its totient is φ = 3218494942.

The previous prime is 3218494933. The next prime is 3218494967. The reversal of 3218494943 is 3494948123.

It is a weak prime.

It is an emirp because it is prime and its reverse (3494948123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3218494943 - 2¹⁰ = 3218493919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3218494933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609247471 + 1609247472.

It is an arithmetic number, because the mean of its divisors is an integer number (1609247472).

Almost surely, 2^3218494943 is an apocalyptic number.

3218494943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3218494943 is an equidigital number, since it uses as much as digits as its factorization.

3218494943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 47.

The square root of 3218494943 is about 56731.7807141641. The cubic root of 3218494943 is about 1476.4461454847.

The spelling of 3218494943 in words is "three billion, two hundred eighteen million, four hundred ninety-four thousand, nine hundred forty-three".