1447345487477 has 2 divisors, whose sum is σ = 1447345487478. Its totient is φ = 1447345487476.

The previous prime is 1447345487461. The next prime is 1447345487509. The reversal of 1447345487477 is 7747845437441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357409076241 + 89936411236 = 1165079^2 + 299894^2 .

It is a cyclic number.

It is not a de Polignac number, because 1447345487477 - 2⁴ = 1447345487461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1447345484477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 723672743738 + 723672743739.

It is an arithmetic number, because the mean of its divisors is an integer number (723672743739).

Almost surely, 2^{1447345487477} is an apocalyptic number.

It is an amenable number.

1447345487477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1447345487477 is an equidigital number, since it uses as much as digits as its factorization.

1447345487477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 295034880, while the sum is 65.

The spelling of 1447345487477 in words is "one trillion, four hundred forty-seven billion, three hundred forty-five million, four hundred eighty-seven thousand, four hundred seventy-seven".