434643685727863 has 2 divisors, whose sum is σ = 434643685727864. Its totient is φ = 434643685727862.

The previous prime is 434643685727861. The next prime is 434643685727893. The reversal of 434643685727863 is 368727586346434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434643685727863 - 2¹ = 434643685727861 is a prime.

Together with 434643685727861, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 434643685727863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434643685727861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217321842863931 + 217321842863932.

It is an arithmetic number, because the mean of its divisors is an integer number (217321842863932).

Almost surely, 2^{434643685727863} is an apocalyptic number.

434643685727863 is a deficient number, since it is larger than the sum of its proper divisors (1).

434643685727863 is an equidigital number, since it uses as much as digits as its factorization.

434643685727863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11705057280, while the sum is 76.

The spelling of 434643685727863 in words is "four hundred thirty-four trillion, six hundred forty-three billion, six hundred eighty-five million, seven hundred twenty-seven thousand, eight hundred sixty-three".