816454719343 has 2 divisors, whose sum is σ = 816454719344. Its totient is φ = 816454719342.

The previous prime is 816454719251. The next prime is 816454719359. The reversal of 816454719343 is 343917454618.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-816454719343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (816454719943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408227359671 + 408227359672.

It is an arithmetic number, because the mean of its divisors is an integer number (408227359672).

Almost surely, 2^816454719343 is an apocalyptic number.

816454719343 is a deficient number, since it is larger than the sum of its proper divisors (1).

816454719343 is an equidigital number, since it uses as much as digits as its factorization.

816454719343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8709120, while the sum is 55.

The spelling of 816454719343 in words is "eight hundred sixteen billion, four hundred fifty-four million, seven hundred nineteen thousand, three hundred forty-three".