41621775077 has 2 divisors, whose sum is σ = 41621775078. Its totient is φ = 41621775076.

The previous prime is 41621775071. The next prime is 41621775089. The reversal of 41621775077 is 77057712614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27011251201 + 14610523876 = 164351^2 + 120874^2 .

It is a cyclic number.

It is not a de Polignac number, because 41621775077 - 2³⁴ = 24441905893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41621775071) 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, 20810887538 + 20810887539.

It is an arithmetic number, because the mean of its divisors is an integer number (20810887539).

Almost surely, 2^41621775077 is an apocalyptic number.

It is an amenable number.

41621775077 is a deficient number, since it is larger than the sum of its proper divisors (1).

41621775077 is an equidigital number, since it uses as much as digits as its factorization.

41621775077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576240, while the sum is 47.

The spelling of 41621775077 in words is "forty-one billion, six hundred twenty-one million, seven hundred seventy-five thousand, seventy-seven".