20430675445 has 16 divisors (see below), whose sum is σ = 24608259648. Its totient is φ = 16283646720.

The previous prime is 20430675443. The next prime is 20430675449. The reversal of 20430675445 is 54457603402.

It is not a de Polignac number, because 20430675445 - 2¹ = 20430675443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20430675398 and 20430675407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20430675443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2937462 + ... + 2944408.

It is an arithmetic number, because the mean of its divisors is an integer number (1538016228).

Almost surely, 2^20430675445 is an apocalyptic number.

It is an amenable number.

20430675445 is a deficient number, since it is larger than the sum of its proper divisors (4177584203).

20430675445 is a wasteful number, since it uses less digits than its factorization.

20430675445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9060.

The product of its (nonzero) digits is 403200, while the sum is 40.

The spelling of 20430675445 in words is "twenty billion, four hundred thirty million, six hundred seventy-five thousand, four hundred forty-five".