447551988585 has 64 divisors (see below), whose sum is σ = 782589911040. Its totient is φ = 217073928960.

The previous prime is 447551988557. The next prime is 447551988589. The reversal of 447551988585 is 585889155744.

It is not a de Polignac number, because 447551988585 - 2³⁰ = 446478246761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (447551988589) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20576646 + ... + 20598384.

It is an arithmetic number, because the mean of its divisors is an integer number (12227967360).

Almost surely, 2^447551988585 is an apocalyptic number.

It is an amenable number.

447551988585 is a deficient number, since it is larger than the sum of its proper divisors (335037922455).

447551988585 is a wasteful number, since it uses less digits than its factorization.

447551988585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23318.

The product of its digits is 322560000, while the sum is 69.

The spelling of 447551988585 in words is "four hundred forty-seven billion, five hundred fifty-one million, nine hundred eighty-eight thousand, five hundred eighty-five".