404470385219447 has 2 divisors, whose sum is σ = 404470385219448. Its totient is φ = 404470385219446.

The previous prime is 404470385219441. The next prime is 404470385219491. The reversal of 404470385219447 is 744912583074404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404470385219447 - 2¹⁰ = 404470385218423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 404470385219447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404470385219441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202235192609723 + 202235192609724.

It is an arithmetic number, because the mean of its divisors is an integer number (202235192609724).

Almost surely, 2^{404470385219447} is an apocalyptic number.

404470385219447 is a deficient number, since it is larger than the sum of its proper divisors (1).

404470385219447 is an equidigital number, since it uses as much as digits as its factorization.

404470385219447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108380160, while the sum is 62.

The spelling of 404470385219447 in words is "four hundred four trillion, four hundred seventy billion, three hundred eighty-five million, two hundred nineteen thousand, four hundred forty-seven".