4040044400461 has 2 divisors, whose sum is σ = 4040044400462. Its totient is φ = 4040044400460.

The previous prime is 4040044400393. The next prime is 4040044400471. The reversal of 4040044400461 is 1640044400404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4026142575625 + 13901824836 = 2006525^2 + 117906^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040044400461 - 2¹⁷ = 4040044269389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4040044400471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2020022200230 + 2020022200231.

It is an arithmetic number, because the mean of its divisors is an integer number (2020022200231).

Almost surely, 2^{4040044400461} is an apocalyptic number.

It is an amenable number.

4040044400461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4040044400461 is an equidigital number, since it uses as much as digits as its factorization.

4040044400461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 4040044400461 its reverse (1640044400404), we get a palindrome (5680088800865).

The spelling of 4040044400461 in words is "four trillion, forty billion, forty-four million, four hundred thousand, four hundred sixty-one".