447628645789 has 8 divisors (see below), whose sum is σ = 482855797760. Its totient is φ = 412514948016.

The previous prime is 447628645777. The next prime is 447628645823. The reversal of 447628645789 is 987546826744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 447628645789 - 2²³ = 447620257181 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 (447628645729) 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, 28355349 + ... + 28371130.

It is an arithmetic number, because the mean of its divisors is an integer number (60356974720).

Almost surely, 2^447628645789 is an apocalyptic number.

It is an amenable number.

447628645789 is a deficient number, since it is larger than the sum of its proper divisors (35227151971).

447628645789 is a wasteful number, since it uses less digits than its factorization.

447628645789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56727099.

The product of its digits is 650280960, while the sum is 70.

The spelling of 447628645789 in words is "four hundred forty-seven billion, six hundred twenty-eight million, six hundred forty-five thousand, seven hundred eighty-nine".