409484323887 has 4 divisors (see below), whose sum is σ = 545979098520. Its totient is φ = 272989549256.

The previous prime is 409484323877. The next prime is 409484323903. The reversal of 409484323887 is 788323484904.

It is a happy number.

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 409484323887 - 2¹¹ = 409484321839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 409484323887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409484323817) 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, 68247387312 + ... + 68247387317.

It is an arithmetic number, because the mean of its divisors is an integer number (136494774630).

Almost surely, 2^409484323887 is an apocalyptic number.

409484323887 is a deficient number, since it is larger than the sum of its proper divisors (136494774633).

409484323887 is a wasteful number, since it uses less digits than its factorization.

409484323887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136494774632.

The product of its (nonzero) digits is 37158912, while the sum is 60.

The spelling of 409484323887 in words is "four hundred nine billion, four hundred eighty-four million, three hundred twenty-three thousand, eight hundred eighty-seven".