42855852264829 has 2 divisors, whose sum is σ = 42855852264830. Its totient is φ = 42855852264828.

The previous prime is 42855852264803. The next prime is 42855852264871. The reversal of 42855852264829 is 92846225855824.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41987833959204 + 868018305625 = 6479802^2 + 931675^2 .

It is a cyclic number.

It is not a de Polignac number, because 42855852264829 - 2²⁷ = 42855718047101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42855852664829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21427926132414 + 21427926132415.

It is an arithmetic number, because the mean of its divisors is an integer number (21427926132415).

Almost surely, 2^{42855852264829} is an apocalyptic number.

It is an amenable number.

42855852264829 is a deficient number, since it is larger than the sum of its proper divisors (1).

42855852264829 is an equidigital number, since it uses as much as digits as its factorization.

42855852264829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736000, while the sum is 70.

The spelling of 42855852264829 in words is "forty-two trillion, eight hundred fifty-five billion, eight hundred fifty-two million, two hundred sixty-four thousand, eight hundred twenty-nine".