5438394433 has 2 divisors, whose sum is σ = 5438394434. Its totient is φ = 5438394432.

The previous prime is 5438394431. The next prime is 5438394439. The reversal of 5438394433 is 3344938345.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3612370609 + 1826023824 = 60103^2 + 42732^2 .

It is a cyclic number.

It is not a de Polignac number, because 5438394433 - 2¹ = 5438394431 is a prime.

It is a super-2 number, since 2×5438394433² = 59152268017770782978, which contains 22 as substring.

Together with 5438394431, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5438394431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2719197216 + 2719197217.

It is an arithmetic number, because the mean of its divisors is an integer number (2719197217).

Almost surely, 2^5438394433 is an apocalyptic number.

It is an amenable number.

5438394433 is a deficient number, since it is larger than the sum of its proper divisors (1).

5438394433 is an equidigital number, since it uses as much as digits as its factorization.

5438394433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 46.

The square root of 5438394433 is about 73745.4705931151. The cubic root of 5438394433 is about 1758.5588272151.

The spelling of 5438394433 in words is "five billion, four hundred thirty-eight million, three hundred ninety-four thousand, four hundred thirty-three".