40044044400053 has 2 divisors, whose sum is σ = 40044044400054. Its totient is φ = 40044044400052.

The previous prime is 40044044399981. The next prime is 40044044400071. The reversal of 40044044400053 is 35000444044004.

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., 37384199804644 + 2659844595409 = 6114262^2 + 1630903^2 .

It is a cyclic number.

It is not a de Polignac number, because 40044044400053 - 2¹⁶ = 40044044334517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40044044399992 and 40044044400019.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40044044430053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20022022200026 + 20022022200027.

It is an arithmetic number, because the mean of its divisors is an integer number (20022022200027).

Almost surely, 2^{40044044400053} is an apocalyptic number.

It is an amenable number.

40044044400053 is a deficient number, since it is larger than the sum of its proper divisors (1).

40044044400053 is an equidigital number, since it uses as much as digits as its factorization.

40044044400053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 32.

Adding to 40044044400053 its reverse (35000444044004), we get a palindrome (75044488444057).

The spelling of 40044044400053 in words is "forty trillion, forty-four billion, forty-four million, four hundred thousand, fifty-three".