409208452841 has 2 divisors, whose sum is σ = 409208452842. Its totient is φ = 409208452840.

The previous prime is 409208452831. The next prime is 409208452931. The reversal of 409208452841 is 148254802904.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274094131600 + 135114321241 = 523540^2 + 367579^2 .

It is a cyclic number.

It is not a de Polignac number, because 409208452841 - 2⁶ = 409208452777 is a prime.

It is not a weakly prime, because it can be changed into another prime (409208452831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204604226420 + 204604226421.

It is an arithmetic number, because the mean of its divisors is an integer number (204604226421).

Almost surely, 2^409208452841 is an apocalyptic number.

It is an amenable number.

409208452841 is a deficient number, since it is larger than the sum of its proper divisors (1).

409208452841 is an equidigital number, since it uses as much as digits as its factorization.

409208452841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 409208452841 in words is "four hundred nine billion, two hundred eight million, four hundred fifty-two thousand, eight hundred forty-one".