41647757761 has 2 divisors, whose sum is σ = 41647757762. Its totient is φ = 41647757760.

The previous prime is 41647757759. The next prime is 41647757783. The reversal of 41647757761 is 16775774614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38635833600 + 3011924161 = 196560^2 + 54881^2 .

It is a cyclic number.

It is not a de Polignac number, because 41647757761 - 2¹ = 41647757759 is a prime.

Together with 41647757759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (41647757561) 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, 20823878880 + 20823878881.

It is an arithmetic number, because the mean of its divisors is an integer number (20823878881).

Almost surely, 2^41647757761 is an apocalyptic number.

It is an amenable number.

41647757761 is a deficient number, since it is larger than the sum of its proper divisors (1).

41647757761 is an equidigital number, since it uses as much as digits as its factorization.

41647757761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6914880, while the sum is 55.

The spelling of 41647757761 in words is "forty-one billion, six hundred forty-seven million, seven hundred fifty-seven thousand, seven hundred sixty-one".