42144422629 has 2 divisors, whose sum is σ = 42144422630. Its totient is φ = 42144422628.

The previous prime is 42144422609. The next prime is 42144422653. The reversal of 42144422629 is 92622444124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41805936225 + 338486404 = 204465^2 + 18398^2 .

It is a cyclic number.

It is not a de Polignac number, because 42144422629 - 2⁵ = 42144422597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42144422591 and 42144422600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42144422609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072211314 + 21072211315.

It is an arithmetic number, because the mean of its divisors is an integer number (21072211315).

Almost surely, 2^42144422629 is an apocalyptic number.

It is an amenable number.

42144422629 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144422629 is an equidigital number, since it uses as much as digits as its factorization.

42144422629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 40.

The spelling of 42144422629 in words is "forty-two billion, one hundred forty-four million, four hundred twenty-two thousand, six hundred twenty-nine".