447718209496 has 8 divisors (see below), whose sum is σ = 839471642820. Its totient is φ = 223859104744.

The previous prime is 447718209493. The next prime is 447718209557. The reversal of 447718209496 is 694902817744.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×447718209496² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447718209493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27982388086 + ... + 27982388101.

Almost surely, 2^447718209496 is an apocalyptic number.

It is an amenable number.

447718209496 is a deficient number, since it is larger than the sum of its proper divisors (391753433324).

447718209496 is a wasteful number, since it uses less digits than its factorization.

447718209496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55964776193 (or 55964776189 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 447718209496 in words is "four hundred forty-seven billion, seven hundred eighteen million, two hundred nine thousand, four hundred ninety-six".