42316266481 has 2 divisors, whose sum is σ = 42316266482. Its totient is φ = 42316266480.

The previous prime is 42316266457. The next prime is 42316266491. The reversal of 42316266481 is 18466261324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26737482256 + 15578784225 = 163516^2 + 124815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42316266481 is a prime.

It is a super-2 number, since 2×42316266481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42316266491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21158133240 + 21158133241.

It is an arithmetic number, because the mean of its divisors is an integer number (21158133241).

Almost surely, 2^42316266481 is an apocalyptic number.

It is an amenable number.

42316266481 is a deficient number, since it is larger than the sum of its proper divisors (1).

42316266481 is an equidigital number, since it uses as much as digits as its factorization.

42316266481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 43.

The spelling of 42316266481 in words is "forty-two billion, three hundred sixteen million, two hundred sixty-six thousand, four hundred eighty-one".