447513973845 has 16 divisors (see below), whose sum is σ = 716286540672. Its totient is φ = 238586058560.

The previous prime is 447513973807. The next prime is 447513973849. The reversal of 447513973845 is 548379315744.

It is not a de Polignac number, because 447513973845 - 2¹⁰ = 447513972821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (447513973849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5461782 + ... + 5543111.

It is an arithmetic number, because the mean of its divisors is an integer number (44767908792).

Almost surely, 2^447513973845 is an apocalyptic number.

It is an amenable number.

447513973845 is a deficient number, since it is larger than the sum of its proper divisors (268772566827).

447513973845 is a wasteful number, since it uses less digits than its factorization.

447513973845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11007612.

The product of its digits is 50803200, while the sum is 60.

The spelling of 447513973845 in words is "four hundred forty-seven billion, five hundred thirteen million, nine hundred seventy-three thousand, eight hundred forty-five".