1793040163891 has 2 divisors, whose sum is σ = 1793040163892. Its totient is φ = 1793040163890.

The previous prime is 1793040163861. The next prime is 1793040163913. The reversal of 1793040163891 is 1983610403971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1793040163891 - 2²⁷ = 1792905946163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1793040163861) 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, 896520081945 + 896520081946.

It is an arithmetic number, because the mean of its divisors is an integer number (896520081946).

Almost surely, 2^{1793040163891} is an apocalyptic number.

1793040163891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1793040163891 is an equidigital number, since it uses as much as digits as its factorization.

1793040163891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 1793040163891 in words is "one trillion, seven hundred ninety-three billion, forty million, one hundred sixty-three thousand, eight hundred ninety-one".