447677345020640 has 144 divisors (see below), whose sum is σ = 1253526734158272. Its totient is φ = 150593349344256.

The previous prime is 447677345020637. The next prime is 447677345020649. The reversal of 447677345020640 is 46020543776744.

It is a self number, because there is not a number n which added to its sum of digits gives 447677345020640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447677345020649) 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 in 23 ways as a sum of consecutive naturals, for example, 538279784 + ... + 539110823.

It is an arithmetic number, because the mean of its divisors is an integer number (8705046764988).

Almost surely, 2^{447677345020640} is an apocalyptic number.

447677345020640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

447677345020640 is an abundant number, since it is smaller than the sum of its proper divisors (805849389137632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447677345020640 is a wasteful number, since it uses less digits than its factorization.

447677345020640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077390689 (or 1077390674 counting only the distinct ones).

The product of its (nonzero) digits is 94832640, while the sum is 59.

The spelling of 447677345020640 in words is "four hundred forty-seven trillion, six hundred seventy-seven billion, three hundred forty-five million, twenty thousand, six hundred forty".