4404000880781 has 2 divisors, whose sum is σ = 4404000880782. Its totient is φ = 4404000880780.

The previous prime is 4404000880723. The next prime is 4404000880823. The reversal of 4404000880781 is 1870880004044.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4163762680900 + 240238199881 = 2040530^2 + 490141^2 .

It is a cyclic number.

It is not a de Polignac number, because 4404000880781 - 2⁶ = 4404000880717 is a prime.

It is a super-2 number, since 2×4404000880781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4404000880681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202000440390 + 2202000440391.

It is an arithmetic number, because the mean of its divisors is an integer number (2202000440391).

Almost surely, 2^{4404000880781} is an apocalyptic number.

It is an amenable number.

4404000880781 is a deficient number, since it is larger than the sum of its proper divisors (1).

4404000880781 is an equidigital number, since it uses as much as digits as its factorization.

4404000880781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229376, while the sum is 44.

The spelling of 4404000880781 in words is "four trillion, four hundred four billion, eight hundred eighty thousand, seven hundred eighty-one".