404575104493 has 4 divisors (see below), whose sum is σ = 462371548000. Its totient is φ = 346778660988.

The previous prime is 404575104473. The next prime is 404575104511. The reversal of 404575104493 is 394401575404.

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 404575104493 - 2³⁷ = 267136151021 is a prime.

It is a super-3 number, since 3×404575104493³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404575104443) 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, 28898221743 + ... + 28898221756.

It is an arithmetic number, because the mean of its divisors is an integer number (115592887000).

Almost surely, 2^404575104493 is an apocalyptic number.

It is an amenable number.

404575104493 is a deficient number, since it is larger than the sum of its proper divisors (57796443507).

404575104493 is an equidigital number, since it uses as much as digits as its factorization.

404575104493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57796443506.

The product of its (nonzero) digits is 1209600, while the sum is 46.

Adding to 404575104493 its reverse (394401575404), we get a palindrome (798976679897).

The spelling of 404575104493 in words is "four hundred four billion, five hundred seventy-five million, one hundred four thousand, four hundred ninety-three".