434205443557 has 2 divisors, whose sum is σ = 434205443558. Its totient is φ = 434205443556.

The previous prime is 434205443531. The next prime is 434205443569. The reversal of 434205443557 is 755344502434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342934387236 + 91271056321 = 585606^2 + 302111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434205443557 is a prime.

It is a super-2 number, since 2×434205443557² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434205423557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217102721778 + 217102721779.

It is an arithmetic number, because the mean of its divisors is an integer number (217102721779).

Almost surely, 2^434205443557 is an apocalyptic number.

It is an amenable number.

434205443557 is a deficient number, since it is larger than the sum of its proper divisors (1).

434205443557 is an equidigital number, since it uses as much as digits as its factorization.

434205443557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032000, while the sum is 46.

The spelling of 434205443557 in words is "four hundred thirty-four billion, two hundred five million, four hundred forty-three thousand, five hundred fifty-seven".