41561362541 has 2 divisors, whose sum is σ = 41561362542. Its totient is φ = 41561362540.

The previous prime is 41561362519. The next prime is 41561362571. The reversal of 41561362541 is 14526316514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41512432516 + 48930025 = 203746^2 + 6995^2 .

It is a cyclic number.

It is not a de Polignac number, because 41561362541 - 2⁶ = 41561362477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 41561362495 and 41561362504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41561362501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20780681270 + 20780681271.

It is an arithmetic number, because the mean of its divisors is an integer number (20780681271).

Almost surely, 2^41561362541 is an apocalyptic number.

It is an amenable number.

41561362541 is a deficient number, since it is larger than the sum of its proper divisors (1).

41561362541 is an equidigital number, since it uses as much as digits as its factorization.

41561362541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 38.

The spelling of 41561362541 in words is "forty-one billion, five hundred sixty-one million, three hundred sixty-two thousand, five hundred forty-one".