434256257807611 has 2 divisors, whose sum is σ = 434256257807612. Its totient is φ = 434256257807610.

The previous prime is 434256257807609. The next prime is 434256257807627. The reversal of 434256257807611 is 116708752652434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 434256257807611 - 2¹ = 434256257807609 is a prime.

Together with 434256257807609, 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 434256257807611.

It is not a weakly prime, because it can be changed into another prime (434256257867611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217128128903805 + 217128128903806.

It is an arithmetic number, because the mean of its divisors is an integer number (217128128903806).

Almost surely, 2^{434256257807611} is an apocalyptic number.

434256257807611 is a deficient number, since it is larger than the sum of its proper divisors (1).

434256257807611 is an equidigital number, since it uses as much as digits as its factorization.

434256257807611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67737600, while the sum is 61.

The spelling of 434256257807611 in words is "four hundred thirty-four trillion, two hundred fifty-six billion, two hundred fifty-seven million, eight hundred seven thousand, six hundred eleven".