2143343967493 has 2 divisors, whose sum is σ = 2143343967494. Its totient is φ = 2143343967492.

The previous prime is 2143343967481. The next prime is 2143343967547. The reversal of 2143343967493 is 3947693433412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1307770642084 + 835573325409 = 1143578^2 + 914097^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143343967493 - 2⁵ = 2143343967461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2143343967433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071671983746 + 1071671983747.

It is an arithmetic number, because the mean of its divisors is an integer number (1071671983747).

Almost surely, 2^{2143343967493} is an apocalyptic number.

It is an amenable number.

2143343967493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2143343967493 is an equidigital number, since it uses as much as digits as its factorization.

2143343967493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 35271936, while the sum is 58.

The spelling of 2143343967493 in words is "two trillion, one hundred forty-three billion, three hundred forty-three million, nine hundred sixty-seven thousand, four hundred ninety-three".