447668046399 has 64 divisors (see below), whose sum is σ = 706803793920. Its totient is φ = 246728160000.

The previous prime is 447668046367. The next prime is 447668046407. The reversal of 447668046399 is 993640866744.

It is a happy number.

It is a Cunningham number, because it is equal to 669080²-1.

It is not a de Polignac number, because 447668046399 - 2⁵ = 447668046367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447668046359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27424162 + ... + 27440480.

It is an arithmetic number, because the mean of its divisors is an integer number (11043809280).

Almost surely, 2^447668046399 is an apocalyptic number.

447668046399 is a deficient number, since it is larger than the sum of its proper divisors (259135747521).

447668046399 is a wasteful number, since it uses less digits than its factorization.

447668046399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16732.

The product of its (nonzero) digits is 188116992, while the sum is 66.

The spelling of 447668046399 in words is "four hundred forty-seven billion, six hundred sixty-eight million, forty-six thousand, three hundred ninety-nine".