41620769209 has 2 divisors, whose sum is σ = 41620769210. Its totient is φ = 41620769208.

The previous prime is 41620769189. The next prime is 41620769243. The reversal of 41620769209 is 90296702614.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23954371984 + 17666397225 = 154772^2 + 132915^2 .

It is a cyclic number.

It is not a de Polignac number, because 41620769209 - 2²⁷ = 41486551481 is a prime.

It is not a weakly prime, because it can be changed into another prime (41620769269) 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, 20810384604 + 20810384605.

It is an arithmetic number, because the mean of its divisors is an integer number (20810384605).

Almost surely, 2^41620769209 is an apocalyptic number.

It is an amenable number.

41620769209 is a deficient number, since it is larger than the sum of its proper divisors (1).

41620769209 is an equidigital number, since it uses as much as digits as its factorization.

41620769209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 41620769209 in words is "forty-one billion, six hundred twenty million, seven hundred sixty-nine thousand, two hundred nine".