42067142309 has 2 divisors, whose sum is σ = 42067142310. Its totient is φ = 42067142308.

The previous prime is 42067142297. The next prime is 42067142317. The reversal of 42067142309 is 90324176024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40893737284 + 1173405025 = 202222^2 + 34255^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42067142309 is a prime.

It is a super-3 number, since 3×42067142309³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42067142339) 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, 21033571154 + 21033571155.

It is an arithmetic number, because the mean of its divisors is an integer number (21033571155).

Almost surely, 2^42067142309 is an apocalyptic number.

It is an amenable number.

42067142309 is a deficient number, since it is larger than the sum of its proper divisors (1).

42067142309 is an equidigital number, since it uses as much as digits as its factorization.

42067142309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The spelling of 42067142309 in words is "forty-two billion, sixty-seven million, one hundred forty-two thousand, three hundred nine".