42686571241 has 2 divisors, whose sum is σ = 42686571242. Its totient is φ = 42686571240.

The previous prime is 42686571197. The next prime is 42686571283. The reversal of 42686571241 is 14217568624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23643675225 + 19042896016 = 153765^2 + 137996^2 .

It is a cyclic number.

It is not a de Polignac number, because 42686571241 - 2⁷ = 42686571113 is a prime.

It is a super-3 number, since 3×42686571241³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42686571191 and 42686571200.

It is not a weakly prime, because it can be changed into another prime (42686571341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21343285620 + 21343285621.

It is an arithmetic number, because the mean of its divisors is an integer number (21343285621).

Almost surely, 2^42686571241 is an apocalyptic number.

It is an amenable number.

42686571241 is a deficient number, since it is larger than the sum of its proper divisors (1).

42686571241 is an equidigital number, since it uses as much as digits as its factorization.

42686571241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

The spelling of 42686571241 in words is "forty-two billion, six hundred eighty-six million, five hundred seventy-one thousand, two hundred forty-one".