41778650497 has 2 divisors, whose sum is σ = 41778650498. Its totient is φ = 41778650496.

The previous prime is 41778650437. The next prime is 41778650519. The reversal of 41778650497 is 79405687714.

It is a happy number.

41778650497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27292361616 + 14486288881 = 165204^2 + 120359^2 .

It is a cyclic number.

It is not a de Polignac number, because 41778650497 - 2¹¹ = 41778648449 is a prime.

It is not a weakly prime, because it can be changed into another prime (41778650437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20889325248 + 20889325249.

It is an arithmetic number, because the mean of its divisors is an integer number (20889325249).

Almost surely, 2^41778650497 is an apocalyptic number.

It is an amenable number.

41778650497 is a deficient number, since it is larger than the sum of its proper divisors (1).

41778650497 is an equidigital number, since it uses as much as digits as its factorization.

41778650497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 41778650497 in words is "forty-one billion, seven hundred seventy-eight million, six hundred fifty thousand, four hundred ninety-seven".