404512027920229 has 2 divisors, whose sum is σ = 404512027920230. Its totient is φ = 404512027920228.

The previous prime is 404512027920227. The next prime is 404512027920307. The reversal of 404512027920229 is 922029720215404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392235252304900 + 12276775615329 = 19804930^2 + 3503823^2 .

It is a cyclic number.

It is not a de Polignac number, because 404512027920229 - 2¹ = 404512027920227 is a prime.

It is a super-2 number, since 2×404512027920229² (a number of 30 digits) contains 22 as substring.

Together with 404512027920227, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404512027920227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202256013960114 + 202256013960115.

It is an arithmetic number, because the mean of its divisors is an integer number (202256013960115).

Almost surely, 2^{404512027920229} is an apocalyptic number.

It is an amenable number.

404512027920229 is a deficient number, since it is larger than the sum of its proper divisors (1).

404512027920229 is an equidigital number, since it uses as much as digits as its factorization.

404512027920229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 404512027920229 in words is "four hundred four trillion, five hundred twelve billion, twenty-seven million, nine hundred twenty thousand, two hundred twenty-nine".