1693375707643 has 2 divisors, whose sum is σ = 1693375707644. Its totient is φ = 1693375707642.

The previous prime is 1693375707623. The next prime is 1693375707671. The reversal of 1693375707643 is 3467075733961.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1693375707643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1693375707623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846687853821 + 846687853822.

It is an arithmetic number, because the mean of its divisors is an integer number (846687853822).

Almost surely, 2^{1693375707643} is an apocalyptic number.

1693375707643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693375707643 is an equidigital number, since it uses as much as digits as its factorization.

1693375707643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60011280, while the sum is 61.

The spelling of 1693375707643 in words is "one trillion, six hundred ninety-three billion, three hundred seventy-five million, seven hundred seven thousand, six hundred forty-three".