434344077677 has 2 divisors, whose sum is σ = 434344077678. Its totient is φ = 434344077676.

The previous prime is 434344077653. The next prime is 434344077719. The reversal of 434344077677 is 776770443434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405532070596 + 28812007081 = 636814^2 + 169741^2 .

It is a cyclic number.

It is not a de Polignac number, because 434344077677 - 2¹⁰ = 434344076653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434344077577) 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, 217172038838 + 217172038839.

It is an arithmetic number, because the mean of its divisors is an integer number (217172038839).

Almost surely, 2^434344077677 is an apocalyptic number.

It is an amenable number.

434344077677 is a deficient number, since it is larger than the sum of its proper divisors (1).

434344077677 is an equidigital number, since it uses as much as digits as its factorization.

434344077677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33191424, while the sum is 56.

The spelling of 434344077677 in words is "four hundred thirty-four billion, three hundred forty-four million, seventy-seven thousand, six hundred seventy-seven".