1447781249107 has 2 divisors, whose sum is σ = 1447781249108. Its totient is φ = 1447781249106.

The previous prime is 1447781249077. The next prime is 1447781249149. The reversal of 1447781249107 is 7019421877441.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1447781249107 is a prime.

It is not a weakly prime, because it can be changed into another prime (1447781249177) 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, 723890624553 + 723890624554.

It is an arithmetic number, because the mean of its divisors is an integer number (723890624554).

Almost surely, 2^{1447781249107} is an apocalyptic number.

1447781249107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447781249107 is an equidigital number, since it uses as much as digits as its factorization.

1447781249107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 55.

The spelling of 1447781249107 in words is "one trillion, four hundred forty-seven billion, seven hundred eighty-one million, two hundred forty-nine thousand, one hundred seven".