404304669553 has 2 divisors, whose sum is σ = 404304669554. Its totient is φ = 404304669552.

The previous prime is 404304669511. The next prime is 404304669619. The reversal of 404304669553 is 355966403404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329719420944 + 74585248609 = 574212^2 + 273103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404304669553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404304669497 and 404304669506.

It is not a weakly prime, because it can be changed into another prime (404304969553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202152334776 + 202152334777.

It is an arithmetic number, because the mean of its divisors is an integer number (202152334777).

Almost surely, 2^404304669553 is an apocalyptic number.

It is an amenable number.

404304669553 is a deficient number, since it is larger than the sum of its proper divisors (1).

404304669553 is an equidigital number, since it uses as much as digits as its factorization.

404304669553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4665600, while the sum is 49.

The spelling of 404304669553 in words is "four hundred four billion, three hundred four million, six hundred sixty-nine thousand, five hundred fifty-three".