440121002162069 has 2 divisors, whose sum is σ = 440121002162070. Its totient is φ = 440121002162068.

The previous prime is 440121002162003. The next prime is 440121002162159. The reversal of 440121002162069 is 960261200121044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 425054998727044 + 15066003435025 = 20616862^2 + 3881495^2 .

It is a cyclic number.

It is not a de Polignac number, because 440121002162069 - 2¹⁶ = 440121002096533 is a prime.

It is a super-2 number, since 2×440121002162069² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (440121002122069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220060501081034 + 220060501081035.

It is an arithmetic number, because the mean of its divisors is an integer number (220060501081035).

Almost surely, 2^{440121002162069} is an apocalyptic number.

It is an amenable number.

440121002162069 is a deficient number, since it is larger than the sum of its proper divisors (1).

440121002162069 is an equidigital number, since it uses as much as digits as its factorization.

440121002162069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 440121002162069 in words is "four hundred forty trillion, one hundred twenty-one billion, two million, one hundred sixty-two thousand, sixty-nine".