434208644423 has 2 divisors, whose sum is σ = 434208644424. Its totient is φ = 434208644422.

The previous prime is 434208644351. The next prime is 434208644437. The reversal of 434208644423 is 324446802434.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434208644423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434208641423) 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, 217104322211 + 217104322212.

It is an arithmetic number, because the mean of its divisors is an integer number (217104322212).

Almost surely, 2^434208644423 is an apocalyptic number.

434208644423 is a deficient number, since it is larger than the sum of its proper divisors (1).

434208644423 is an equidigital number, since it uses as much as digits as its factorization.

434208644423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1769472, while the sum is 44.

The spelling of 434208644423 in words is "four hundred thirty-four billion, two hundred eight million, six hundred forty-four thousand, four hundred twenty-three".