41609847481 has 2 divisors, whose sum is σ = 41609847482. Its totient is φ = 41609847480.

The previous prime is 41609847473. The next prime is 41609847497. The reversal of 41609847481 is 18474890614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25261923600 + 16347923881 = 158940^2 + 127859^2 .

It is a cyclic number.

It is not a de Polignac number, because 41609847481 - 2³ = 41609847473 is a prime.

It is a super-2 number, since 2×41609847481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (41609847401) 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, 20804923740 + 20804923741.

It is an arithmetic number, because the mean of its divisors is an integer number (20804923741).

Almost surely, 2^41609847481 is an apocalyptic number.

It is an amenable number.

41609847481 is a deficient number, since it is larger than the sum of its proper divisors (1).

41609847481 is an equidigital number, since it uses as much as digits as its factorization.

41609847481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 41609847481 in words is "forty-one billion, six hundred nine million, eight hundred forty-seven thousand, four hundred eighty-one".