1463444413181 has 2 divisors, whose sum is σ = 1463444413182. Its totient is φ = 1463444413180.

The previous prime is 1463444413169. The next prime is 1463444413213. The reversal of 1463444413181 is 1813144443641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1119292057156 + 344152356025 = 1057966^2 + 586645^2 .

It is an emirp because it is prime and its reverse (1813144443641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1463444413181 is a prime.

It is a super-2 number, since 2×1463444413181² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1463444413111) 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, 731722206590 + 731722206591.

It is an arithmetic number, because the mean of its divisors is an integer number (731722206591).

Almost surely, 2^{1463444413181} is an apocalyptic number.

It is an amenable number.

1463444413181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1463444413181 is an equidigital number, since it uses as much as digits as its factorization.

1463444413181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 442368, while the sum is 44.

The spelling of 1463444413181 in words is "one trillion, four hundred sixty-three billion, four hundred forty-four million, four hundred thirteen thousand, one hundred eighty-one".