42511141669 has 2 divisors, whose sum is σ = 42511141670. Its totient is φ = 42511141668.

The previous prime is 42511141649. The next prime is 42511141691. The reversal of 42511141669 is 96614111524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32593969444 + 9917172225 = 180538^2 + 99585^2 .

It is a cyclic number.

It is not a de Polignac number, because 42511141669 - 2⁵ = 42511141637 is a prime.

It is a super-2 number, since 2×42511141669² (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 (42511141639) 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, 21255570834 + 21255570835.

It is an arithmetic number, because the mean of its divisors is an integer number (21255570835).

Almost surely, 2^42511141669 is an apocalyptic number.

It is an amenable number.

42511141669 is a deficient number, since it is larger than the sum of its proper divisors (1).

42511141669 is an equidigital number, since it uses as much as digits as its factorization.

42511141669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The spelling of 42511141669 in words is "forty-two billion, five hundred eleven million, one hundred forty-one thousand, six hundred sixty-nine".