1693742964643 has 2 divisors, whose sum is σ = 1693742964644. Its totient is φ = 1693742964642.

The previous prime is 1693742964611. The next prime is 1693742964673. The reversal of 1693742964643 is 3464692473961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1693742964643 - 2⁵ = 1693742964611 is a prime.

It is not a weakly prime, because it can be changed into another prime (1693742964673) 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, 846871482321 + 846871482322.

It is an arithmetic number, because the mean of its divisors is an integer number (846871482322).

Almost surely, 2^{1693742964643} is an apocalyptic number.

1693742964643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693742964643 is an equidigital number, since it uses as much as digits as its factorization.

1693742964643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141087744, while the sum is 64.

The spelling of 1693742964643 in words is "one trillion, six hundred ninety-three billion, seven hundred forty-two million, nine hundred sixty-four thousand, six hundred forty-three".