42143116469 has 2 divisors, whose sum is σ = 42143116470. Its totient is φ = 42143116468.

The previous prime is 42143116387. The next prime is 42143116471. The reversal of 42143116469 is 96461134124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37608844900 + 4534271569 = 193930^2 + 67337^2 .

It is a cyclic number.

It is not a de Polignac number, because 42143116469 - 2¹⁶ = 42143050933 is a prime.

It is a super-2 number, since 2×42143116469² (a number of 22 digits) contains 22 as substring.

Together with 42143116471, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42143116489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071558234 + 21071558235.

It is an arithmetic number, because the mean of its divisors is an integer number (21071558235).

Almost surely, 2^42143116469 is an apocalyptic number.

It is an amenable number.

42143116469 is a deficient number, since it is larger than the sum of its proper divisors (1).

42143116469 is an equidigital number, since it uses as much as digits as its factorization.

42143116469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The spelling of 42143116469 in words is "forty-two billion, one hundred forty-three million, one hundred sixteen thousand, four hundred sixty-nine".