404643133009 has 4 divisors (see below), whose sum is σ = 404653265716. Its totient is φ = 404633000304.

The previous prime is 404643132991. The next prime is 404643133039. The reversal of 404643133009 is 900331346404.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21977173009 + 382665960000 = 148247^2 + 618600^2 .

It is a cyclic number.

It is not a de Polignac number, because 404643133009 - 2³⁷ = 267204179537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404643133039) 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, 5006214 + ... + 5086399.

It is an arithmetic number, because the mean of its divisors is an integer number (101163316429).

Almost surely, 2^404643133009 is an apocalyptic number.

It is an amenable number.

404643133009 is a deficient number, since it is larger than the sum of its proper divisors (10132707).

404643133009 is a wasteful number, since it uses less digits than its factorization.

404643133009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10132706.

The product of its (nonzero) digits is 93312, while the sum is 37.

The spelling of 404643133009 in words is "four hundred four billion, six hundred forty-three million, one hundred thirty-three thousand, nine".