8042642029 has 2 divisors, whose sum is σ = 8042642030. Its totient is φ = 8042642028.

The previous prime is 8042641963. The next prime is 8042642059. The reversal of 8042642029 is 9202462408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4257562500 + 3785079529 = 65250^2 + 61523^2 .

It is a cyclic number.

It is not a de Polignac number, because 8042642029 - 2¹¹ = 8042639981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8042642059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4021321014 + 4021321015.

It is an arithmetic number, because the mean of its divisors is an integer number (4021321015).

Almost surely, 2^8042642029 is an apocalyptic number.

It is an amenable number.

8042642029 is a deficient number, since it is larger than the sum of its proper divisors (1).

8042642029 is an equidigital number, since it uses as much as digits as its factorization.

8042642029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 8042642029 is about 89680.7784812331. The cubic root of 8042642029 is about 2003.5472073572.

The spelling of 8042642029 in words is "eight billion, forty-two million, six hundred forty-two thousand, twenty-nine".