42183281669 has 2 divisors, whose sum is σ = 42183281670. Its totient is φ = 42183281668.

The previous prime is 42183281663. The next prime is 42183281683. The reversal of 42183281669 is 96618238124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41722964644 + 460317025 = 204262^2 + 21455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42183281669 is a prime.

It is a super-2 number, since 2×42183281669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42183281663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21091640834 + 21091640835.

It is an arithmetic number, because the mean of its divisors is an integer number (21091640835).

Almost surely, 2^42183281669 is an apocalyptic number.

It is an amenable number.

42183281669 is a deficient number, since it is larger than the sum of its proper divisors (1).

42183281669 is an equidigital number, since it uses as much as digits as its factorization.

42183281669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 50.

The spelling of 42183281669 in words is "forty-two billion, one hundred eighty-three million, two hundred eighty-one thousand, six hundred sixty-nine".