17900834423 has 2 divisors, whose sum is σ = 17900834424. Its totient is φ = 17900834422.

The previous prime is 17900834389. The next prime is 17900834453. The reversal of 17900834423 is 32443800971.

It is a strong prime.

It is an emirp because it is prime and its reverse (32443800971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17900834423 - 2¹⁰ = 17900833399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17900834453) 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, 8950417211 + 8950417212.

It is an arithmetic number, because the mean of its divisors is an integer number (8950417212).

Almost surely, 2^17900834423 is an apocalyptic number.

17900834423 is a deficient number, since it is larger than the sum of its proper divisors (1).

17900834423 is an equidigital number, since it uses as much as digits as its factorization.

17900834423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 17900834423 in words is "seventeen billion, nine hundred million, eight hundred thirty-four thousand, four hundred twenty-three".