1438316066843 has 2 divisors, whose sum is σ = 1438316066844. Its totient is φ = 1438316066842.

The previous prime is 1438316066821. The next prime is 1438316066917. The reversal of 1438316066843 is 3486606138341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1438316066843 - 2³⁰ = 1437242325019 is a prime.

It is a super-3 number, since 3×1438316066843³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1438316066443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719158033421 + 719158033422.

It is an arithmetic number, because the mean of its divisors is an integer number (719158033422).

Almost surely, 2^{1438316066843} is an apocalyptic number.

1438316066843 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438316066843 is an equidigital number, since it uses as much as digits as its factorization.

1438316066843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 1438316066843 in words is "one trillion, four hundred thirty-eight billion, three hundred sixteen million, sixty-six thousand, eight hundred forty-three".