41535149561 has 2 divisors, whose sum is σ = 41535149562. Its totient is φ = 41535149560.

The previous prime is 41535149527. The next prime is 41535149599. The reversal of 41535149561 is 16594153514.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37643760400 + 3891389161 = 194020^2 + 62381^2 .

It is a cyclic number.

It is not a de Polignac number, because 41535149561 - 2¹⁴ = 41535133177 is a prime.

It is not a weakly prime, because it can be changed into another prime (41535949561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20767574780 + 20767574781.

It is an arithmetic number, because the mean of its divisors is an integer number (20767574781).

Almost surely, 2^41535149561 is an apocalyptic number.

It is an amenable number.

41535149561 is a deficient number, since it is larger than the sum of its proper divisors (1).

41535149561 is an equidigital number, since it uses as much as digits as its factorization.

41535149561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 44.

The spelling of 41535149561 in words is "forty-one billion, five hundred thirty-five million, one hundred forty-nine thousand, five hundred sixty-one".