409385241289 has 4 divisors (see below), whose sum is σ = 409386922960. Its totient is φ = 409383559620.

The previous prime is 409385241263. The next prime is 409385241323. The reversal of 409385241289 is 982142583904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409385241289 - 2¹⁷ = 409385110217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409385241259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397899 + ... + 988480.

It is an arithmetic number, because the mean of its divisors is an integer number (102346730740).

Almost surely, 2^409385241289 is an apocalyptic number.

It is an amenable number.

409385241289 is a deficient number, since it is larger than the sum of its proper divisors (1681671).

409385241289 is a wasteful number, since it uses less digits than its factorization.

409385241289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681670.

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 409385241289 in words is "four hundred nine billion, three hundred eighty-five million, two hundred forty-one thousand, two hundred eighty-nine".