409349086586189 has 2 divisors, whose sum is σ = 409349086586190. Its totient is φ = 409349086586188.

The previous prime is 409349086586081. The next prime is 409349086586261. The reversal of 409349086586189 is 981685680943904.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 373662740408164 + 35686346178025 = 19330358^2 + 5973805^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409349086586189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409349086586389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204674543293094 + 204674543293095.

It is an arithmetic number, because the mean of its divisors is an integer number (204674543293095).

Almost surely, 2^{409349086586189} is an apocalyptic number.

It is an amenable number.

409349086586189 is a deficient number, since it is larger than the sum of its proper divisors (1).

409349086586189 is an equidigital number, since it uses as much as digits as its factorization.

409349086586189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3224862720, while the sum is 80.

The spelling of 409349086586189 in words is "four hundred nine trillion, three hundred forty-nine billion, eighty-six million, five hundred eighty-six thousand, one hundred eighty-nine".