42743814481 has 2 divisors, whose sum is σ = 42743814482. Its totient is φ = 42743814480.

The previous prime is 42743814439. The next prime is 42743814517. The reversal of 42743814481 is 18441834724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38714104081 + 4029710400 = 196759^2 + 63480^2 .

It is a cyclic number.

It is not a de Polignac number, because 42743814481 - 2⁹ = 42743813969 is a prime.

It is a super-2 number, since 2×42743814481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42743814401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21371907240 + 21371907241.

It is an arithmetic number, because the mean of its divisors is an integer number (21371907241).

Almost surely, 2^42743814481 is an apocalyptic number.

It is an amenable number.

42743814481 is a deficient number, since it is larger than the sum of its proper divisors (1).

42743814481 is an equidigital number, since it uses as much as digits as its factorization.

42743814481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 688128, while the sum is 46.

The spelling of 42743814481 in words is "forty-two billion, seven hundred forty-three million, eight hundred fourteen thousand, four hundred eighty-one".