1447428787219 has 2 divisors, whose sum is σ = 1447428787220. Its totient is φ = 1447428787218.

The previous prime is 1447428787171. The next prime is 1447428787243. The reversal of 1447428787219 is 9127878247441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1447428787219 - 2⁹ = 1447428786707 is a prime.

It is a super-2 number, since 2×1447428787219² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1447428787279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723714393609 + 723714393610.

It is an arithmetic number, because the mean of its divisors is an integer number (723714393610).

Almost surely, 2^{1447428787219} is an apocalyptic number.

1447428787219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447428787219 is an equidigital number, since it uses as much as digits as its factorization.

1447428787219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50577408, while the sum is 64.

The spelling of 1447428787219 in words is "one trillion, four hundred forty-seven billion, four hundred twenty-eight million, seven hundred eighty-seven thousand, two hundred nineteen".