450684147447 has 8 divisors (see below), whose sum is σ = 667680218480. Its totient is φ = 300456098280.

The previous prime is 450684147443. The next prime is 450684147469. The reversal of 450684147447 is 744741486054.

450684147447 is a `hidden beast` number, since 4 + 50 + 6 + 8 + 4 + 147 + 447 = 666.

It is not a de Polignac number, because 450684147447 - 2² = 450684147443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450684147393 and 450684147402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450684147443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8346002704 + ... + 8346002757.

It is an arithmetic number, because the mean of its divisors is an integer number (83460027310).

Almost surely, 2^450684147447 is an apocalyptic number.

450684147447 is a deficient number, since it is larger than the sum of its proper divisors (216996071033).

450684147447 is a wasteful number, since it uses less digits than its factorization.

450684147447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16692005470 (or 16692005464 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 54.

The spelling of 450684147447 in words is "four hundred fifty billion, six hundred eighty-four million, one hundred forty-seven thousand, four hundred forty-seven".