42606220429 has 2 divisors, whose sum is σ = 42606220430. Its totient is φ = 42606220428.

The previous prime is 42606220421. The next prime is 42606220453. The reversal of 42606220429 is 92402260624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42519264804 + 86955625 = 206202^2 + 9325^2 .

It is a cyclic number.

It is not a de Polignac number, because 42606220429 - 2³ = 42606220421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42606220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21303110214 + 21303110215.

It is an arithmetic number, because the mean of its divisors is an integer number (21303110215).

Almost surely, 2^42606220429 is an apocalyptic number.

It is an amenable number.

42606220429 is a deficient number, since it is larger than the sum of its proper divisors (1).

42606220429 is an equidigital number, since it uses as much as digits as its factorization.

42606220429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 37.

The spelling of 42606220429 in words is "forty-two billion, six hundred six million, two hundred twenty thousand, four hundred twenty-nine".