1441457168491 has 2 divisors, whose sum is σ = 1441457168492. Its totient is φ = 1441457168490.

The previous prime is 1441457168443. The next prime is 1441457168507. The reversal of 1441457168491 is 1948617541441.

It is a strong prime.

It is an emirp because it is prime and its reverse (1948617541441) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441457168491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1441457468491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720728584245 + 720728584246.

It is an arithmetic number, because the mean of its divisors is an integer number (720728584246).

Almost surely, 2^{1441457168491} is an apocalyptic number.

1441457168491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441457168491 is an equidigital number, since it uses as much as digits as its factorization.

1441457168491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 55.

The spelling of 1441457168491 in words is "one trillion, four hundred forty-one billion, four hundred fifty-seven million, one hundred sixty-eight thousand, four hundred ninety-one".