1694399992223 has 2 divisors, whose sum is σ = 1694399992224. Its totient is φ = 1694399992222.

The previous prime is 1694399992163. The next prime is 1694399992249. The reversal of 1694399992223 is 3222999934961.

It is a strong prime.

It is an emirp because it is prime and its reverse (3222999934961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1694399992223 - 2²⁶ = 1694332883359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1694399932223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847199996111 + 847199996112.

It is an arithmetic number, because the mean of its divisors is an integer number (847199996112).

Almost surely, 2^{1694399992223} is an apocalyptic number.

1694399992223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1694399992223 is an equidigital number, since it uses as much as digits as its factorization.

1694399992223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102036672, while the sum is 68.

The spelling of 1694399992223 in words is "one trillion, six hundred ninety-four billion, three hundred ninety-nine million, nine hundred ninety-two thousand, two hundred twenty-three".