404047839553 has 4 divisors (see below), whose sum is σ = 410896108080. Its totient is φ = 397199571028.

The previous prime is 404047839539. The next prime is 404047839589. The reversal of 404047839553 is 355938740404.

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 404047839553 - 2¹³ = 404047831361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404047839553.

It is not an unprimeable number, because it can be changed into a prime (404047839053) 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, 3424134175 + ... + 3424134292.

It is an arithmetic number, because the mean of its divisors is an integer number (102724027020).

Almost surely, 2^404047839553 is an apocalyptic number.

It is an amenable number.

404047839553 is a deficient number, since it is larger than the sum of its proper divisors (6848268527).

404047839553 is an equidigital number, since it uses as much as digits as its factorization.

404047839553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6848268526.

The product of its (nonzero) digits is 7257600, while the sum is 52.

The spelling of 404047839553 in words is "four hundred four billion, forty-seven million, eight hundred thirty-nine thousand, five hundred fifty-three".