434343009557 has 2 divisors, whose sum is σ = 434343009558. Its totient is φ = 434343009556.

The previous prime is 434343009539. The next prime is 434343009599. The reversal of 434343009557 is 755900343434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433794794161 + 548215396 = 658631^2 + 23414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434343009557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434343005557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217171504778 + 217171504779.

It is an arithmetic number, because the mean of its divisors is an integer number (217171504779).

Almost surely, 2^434343009557 is an apocalyptic number.

It is an amenable number.

434343009557 is a deficient number, since it is larger than the sum of its proper divisors (1).

434343009557 is an equidigital number, since it uses as much as digits as its factorization.

434343009557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 47.

The spelling of 434343009557 in words is "four hundred thirty-four billion, three hundred forty-three million, nine thousand, five hundred fifty-seven".