409083152861 has 2 divisors, whose sum is σ = 409083152862. Its totient is φ = 409083152860.

The previous prime is 409083152831. The next prime is 409083152869. The reversal of 409083152861 is 168251380904.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298979304100 + 110103848761 = 546790^2 + 331819^2 .

It is a cyclic number.

It is not a de Polignac number, because 409083152861 - 2¹⁴ = 409083136477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409083152869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204541576430 + 204541576431.

It is an arithmetic number, because the mean of its divisors is an integer number (204541576431).

Almost surely, 2^409083152861 is an apocalyptic number.

It is an amenable number.

409083152861 is a deficient number, since it is larger than the sum of its proper divisors (1).

409083152861 is an equidigital number, since it uses as much as digits as its factorization.

409083152861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 409083152861 in words is "four hundred nine billion, eighty-three million, one hundred fifty-two thousand, eight hundred sixty-one".