447399788607 has 8 divisors (see below), whose sum is σ = 662814501680. Its totient is φ = 298266525720.

The previous prime is 447399788603. The next prime is 447399788639. The reversal of 447399788607 is 706887993744.

447399788607 is a `hidden beast` number, since 4 + 4 + 7 + 3 + 9 + 9 + 7 + 8 + 8 + 607 = 666.

It is not a de Polignac number, because 447399788607 - 2² = 447399788603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447399788603) 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 in 7 ways as a sum of consecutive naturals, for example, 8285181244 + ... + 8285181297.

It is an arithmetic number, because the mean of its divisors is an integer number (82851812710).

Almost surely, 2^447399788607 is an apocalyptic number.

447399788607 is a deficient number, since it is larger than the sum of its proper divisors (215414713073).

447399788607 is a wasteful number, since it uses less digits than its factorization.

447399788607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570362550 (or 16570362544 counting only the distinct ones).

The product of its (nonzero) digits is 512096256, while the sum is 72.

The spelling of 447399788607 in words is "four hundred forty-seven billion, three hundred ninety-nine million, seven hundred eighty-eight thousand, six hundred seven".