409589355623 has 4 divisors (see below), whose sum is σ = 468102120720. Its totient is φ = 351076590528.

The previous prime is 409589355613. The next prime is 409589355631. The reversal of 409589355623 is 326553985904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 409589355623 - 2⁶ = 409589355559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409589355613) 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, 29256382538 + ... + 29256382551.

It is an arithmetic number, because the mean of its divisors is an integer number (117025530180).

Almost surely, 2^409589355623 is an apocalyptic number.

409589355623 is a deficient number, since it is larger than the sum of its proper divisors (58512765097).

409589355623 is an equidigital number, since it uses as much as digits as its factorization.

409589355623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58512765096.

The product of its (nonzero) digits is 34992000, while the sum is 59.

The spelling of 409589355623 in words is "four hundred nine billion, five hundred eighty-nine million, three hundred fifty-five thousand, six hundred twenty-three".