1791434968859 has 2 divisors, whose sum is σ = 1791434968860. Its totient is φ = 1791434968858.

The previous prime is 1791434968849. The next prime is 1791434968879. The reversal of 1791434968859 is 9588694341971.

It is a weak prime.

It is an emirp because it is prime and its reverse (9588694341971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1791434968859 - 2²⁴ = 1791418191643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1791434968819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895717484429 + 895717484430.

It is an arithmetic number, because the mean of its divisors is an integer number (895717484430).

Almost surely, 2^{1791434968859} is an apocalyptic number.

1791434968859 is a deficient number, since it is larger than the sum of its proper divisors (1).

1791434968859 is an equidigital number, since it uses as much as digits as its factorization.

1791434968859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470292480, while the sum is 74.

The spelling of 1791434968859 in words is "one trillion, seven hundred ninety-one billion, four hundred thirty-four million, nine hundred sixty-eight thousand, eight hundred fifty-nine".