320423007447 has 12 divisors (see below), whose sum is σ = 487192877080. Its totient is φ = 202372425648.

The previous prime is 320423007433. The next prime is 320423007521. The reversal of 320423007447 is 744700324023.

320423007447 is a `hidden beast` number, since 3 + 204 + 2 + 3 + 0 + 0 + 7 + 447 = 666.

It is not a de Polignac number, because 320423007447 - 2⁴ = 320423007431 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 (320423008447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 936909208 + ... + 936909549.

Almost surely, 2^320423007447 is an apocalyptic number.

320423007447 is a deficient number, since it is larger than the sum of its proper divisors (166769869633).

320423007447 is a wasteful number, since it uses less digits than its factorization.

320423007447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873818782 (or 1873818779 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 36.

The spelling of 320423007447 in words is "three hundred twenty billion, four hundred twenty-three million, seven thousand, four hundred forty-seven".