1442491118491 has 2 divisors, whose sum is σ = 1442491118492. Its totient is φ = 1442491118490.

The previous prime is 1442491118489. The next prime is 1442491118533. The reversal of 1442491118491 is 1948111942441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1442491118491 - 2¹ = 1442491118489 is a prime.

Together with 1442491118489, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1442491118191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721245559245 + 721245559246.

It is an arithmetic number, because the mean of its divisors is an integer number (721245559246).

Almost surely, 2^{1442491118491} is an apocalyptic number.

1442491118491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442491118491 is an equidigital number, since it uses as much as digits as its factorization.

1442491118491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 49.

The spelling of 1442491118491 in words is "one trillion, four hundred forty-two billion, four hundred ninety-one million, one hundred eighteen thousand, four hundred ninety-one".