1338172358443 has 2 divisors, whose sum is σ = 1338172358444. Its totient is φ = 1338172358442.

The previous prime is 1338172358431. The next prime is 1338172358507. The reversal of 1338172358443 is 3448532718331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338172358443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1338172358143) 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, 669086179221 + 669086179222.

It is an arithmetic number, because the mean of its divisors is an integer number (669086179222).

Almost surely, 2^{1338172358443} is an apocalyptic number.

1338172358443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1338172358443 is an equidigital number, since it uses as much as digits as its factorization.

1338172358443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5806080, while the sum is 52.

The spelling of 1338172358443 in words is "one trillion, three hundred thirty-eight billion, one hundred seventy-two million, three hundred fifty-eight thousand, four hundred forty-three".