411991312769 has 2 divisors, whose sum is σ = 411991312770. Its totient is φ = 411991312768.

The previous prime is 411991312763. The next prime is 411991312787. The reversal of 411991312769 is 967213199114.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 401569353025 + 10421959744 = 633695^2 + 102088^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-411991312769 is a prime.

It is a super-2 number, since 2×411991312769² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 411991312769.

It is not a weakly prime, because it can be changed into another prime (411991312763) 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, 205995656384 + 205995656385.

It is an arithmetic number, because the mean of its divisors is an integer number (205995656385).

Almost surely, 2^411991312769 is an apocalyptic number.

It is an amenable number.

411991312769 is a deficient number, since it is larger than the sum of its proper divisors (1).

411991312769 is an equidigital number, since it uses as much as digits as its factorization.

411991312769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 53.

The spelling of 411991312769 in words is "four hundred eleven billion, nine hundred ninety-one million, three hundred twelve thousand, seven hundred sixty-nine".