42433235656129 has 2 divisors, whose sum is σ = 42433235656130. Its totient is φ = 42433235656128.

The previous prime is 42433235656127. The next prime is 42433235656139. The reversal of 42433235656129 is 92165653233424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32375838260529 + 10057397395600 = 5689977^2 + 3171340^2 .

It is a cyclic number.

It is not a de Polignac number, because 42433235656129 - 2¹ = 42433235656127 is a prime.

Together with 42433235656127, 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 42433235656129.

It is not a weakly prime, because it can be changed into another prime (42433235656121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21216617828064 + 21216617828065.

It is an arithmetic number, because the mean of its divisors is an integer number (21216617828065).

Almost surely, 2^{42433235656129} is an apocalyptic number.

It is an amenable number.

42433235656129 is a deficient number, since it is larger than the sum of its proper divisors (1).

42433235656129 is an equidigital number, since it uses as much as digits as its factorization.

42433235656129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 55.

The spelling of 42433235656129 in words is "forty-two trillion, four hundred thirty-three billion, two hundred thirty-five million, six hundred fifty-six thousand, one hundred twenty-nine".