42486416509 has 2 divisors, whose sum is σ = 42486416510. Its totient is φ = 42486416508.

The previous prime is 42486416437. The next prime is 42486416513. The reversal of 42486416509 is 90561468424.

42486416509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41502653284 + 983763225 = 203722^2 + 31365^2 .

It is a cyclic number.

It is not a de Polignac number, because 42486416509 - 2¹¹ = 42486414461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42486416519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21243208254 + 21243208255.

It is an arithmetic number, because the mean of its divisors is an integer number (21243208255).

Almost surely, 2^42486416509 is an apocalyptic number.

It is an amenable number.

42486416509 is a deficient number, since it is larger than the sum of its proper divisors (1).

42486416509 is an equidigital number, since it uses as much as digits as its factorization.

42486416509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 42486416509 in words is "forty-two billion, four hundred eighty-six million, four hundred sixteen thousand, five hundred nine".