404544011969 has 2 divisors, whose sum is σ = 404544011970. Its totient is φ = 404544011968.

The previous prime is 404544011939. The next prime is 404544012029. The reversal of 404544011969 is 969110445404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259169573569 + 145374438400 = 509087^2 + 381280^2 .

It is a cyclic number.

It is not a de Polignac number, because 404544011969 - 2¹² = 404544007873 is a prime.

It is a super-2 number, since 2×404544011969² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (404544011929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202272005984 + 202272005985.

It is an arithmetic number, because the mean of its divisors is an integer number (202272005985).

Almost surely, 2^404544011969 is an apocalyptic number.

It is an amenable number.

404544011969 is a deficient number, since it is larger than the sum of its proper divisors (1).

404544011969 is an equidigital number, since it uses as much as digits as its factorization.

404544011969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 404544011969 in words is "four hundred four billion, five hundred forty-four million, eleven thousand, nine hundred sixty-nine".