42134234039 has 2 divisors, whose sum is σ = 42134234040. Its totient is φ = 42134234038.

The previous prime is 42134234029. The next prime is 42134234053. The reversal of 42134234039 is 93043243124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42134234039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42134234029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21067117019 + 21067117020.

It is an arithmetic number, because the mean of its divisors is an integer number (21067117020).

Almost surely, 2^42134234039 is an apocalyptic number.

42134234039 is a deficient number, since it is larger than the sum of its proper divisors (1).

42134234039 is an equidigital number, since it uses as much as digits as its factorization.

42134234039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 35.

The spelling of 42134234039 in words is "forty-two billion, one hundred thirty-four million, two hundred thirty-four thousand, thirty-nine".