1447381814847 has 16 divisors (see below), whose sum is σ = 1931557150848. Its totient is φ = 964064144160.

The previous prime is 1447381814833. The next prime is 1447381814863. The reversal of 1447381814847 is 7484181837441.

It is not a de Polignac number, because 1447381814847 - 2⁷ = 1447381814719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1447381814867) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20996697 + ... + 21065517.

It is an arithmetic number, because the mean of its divisors is an integer number (120722321928).

Almost surely, 2^{1447381814847} is an apocalyptic number.

1447381814847 is a deficient number, since it is larger than the sum of its proper divisors (484175336001).

1447381814847 is a wasteful number, since it uses less digits than its factorization.

1447381814847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74950.

The product of its digits is 19267584, while the sum is 60.

The spelling of 1447381814847 in words is "one trillion, four hundred forty-seven billion, three hundred eighty-one million, eight hundred fourteen thousand, eight hundred forty-seven".