54447064409 has 2 divisors, whose sum is σ = 54447064410. Its totient is φ = 54447064408.

The previous prime is 54447064393. The next prime is 54447064439. The reversal of 54447064409 is 90446074445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49705364809 + 4741699600 = 222947^2 + 68860^2 .

It is a cyclic number.

It is not a de Polignac number, because 54447064409 - 2⁴ = 54447064393 is a prime.

It is not a weakly prime, because it can be changed into another prime (54447064439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27223532204 + 27223532205.

It is an arithmetic number, because the mean of its divisors is an integer number (27223532205).

Almost surely, 2^54447064409 is an apocalyptic number.

It is an amenable number.

54447064409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54447064409 is an equidigital number, since it uses as much as digits as its factorization.

54447064409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 47.

The spelling of 54447064409 in words is "fifty-four billion, four hundred forty-seven million, sixty-four thousand, four hundred nine".