404111240461 has 2 divisors, whose sum is σ = 404111240462. Its totient is φ = 404111240460.

The previous prime is 404111240443. The next prime is 404111240557. The reversal of 404111240461 is 164042111404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250106011236 + 154005229225 = 500106^2 + 392435^2 .

It is a cyclic number.

It is not a de Polignac number, because 404111240461 - 2¹⁹ = 404110716173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404111240431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202055620230 + 202055620231.

It is an arithmetic number, because the mean of its divisors is an integer number (202055620231).

Almost surely, 2^404111240461 is an apocalyptic number.

It is an amenable number.

404111240461 is a deficient number, since it is larger than the sum of its proper divisors (1).

404111240461 is an equidigital number, since it uses as much as digits as its factorization.

404111240461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 404111240461 its reverse (164042111404), we get a palindrome (568153351865).

The spelling of 404111240461 in words is "four hundred four billion, one hundred eleven million, two hundred forty thousand, four hundred sixty-one".