20430675472 has 40 divisors (see below), whose sum is σ = 39714975936. Its totient is φ = 10181713536.

The previous prime is 20430675449. The next prime is 20430675521. The reversal of 20430675472 is 27457603402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7988818 + ... + 7991374.

Almost surely, 2^20430675472 is an apocalyptic number.

It is an amenable number.

20430675472 is a deficient number, since it is larger than the sum of its proper divisors (19284300464).

20430675472 is a wasteful number, since it uses less digits than its factorization.

20430675472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4015 (or 4009 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 20430675472 in words is "twenty billion, four hundred thirty million, six hundred seventy-five thousand, four hundred seventy-two".