63774385447 has 2 divisors, whose sum is σ = 63774385448. Its totient is φ = 63774385446.

The previous prime is 63774385439. The next prime is 63774385453. The reversal of 63774385447 is 74458347736.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63774385447 - 2³ = 63774385439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63774385391 and 63774385400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63774385417) 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, 31887192723 + 31887192724.

It is an arithmetic number, because the mean of its divisors is an integer number (31887192724).

Almost surely, 2^63774385447 is an apocalyptic number.

63774385447 is a deficient number, since it is larger than the sum of its proper divisors (1).

63774385447 is an equidigital number, since it uses as much as digits as its factorization.

63774385447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47416320, while the sum is 58.

The spelling of 63774385447 in words is "sixty-three billion, seven hundred seventy-four million, three hundred eighty-five thousand, four hundred forty-seven".