9447984505 has 16 divisors (see below), whose sum is σ = 11844910080. Its totient is φ = 7220968128.

The previous prime is 9447984493. The next prime is 9447984523. The reversal of 9447984505 is 5054897449.

9447984505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9447984505 - 2²⁵ = 9414430073 is a prime.

It is a super-2 number, since 2×9447984505² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45784 + ... + 144886.

It is an arithmetic number, because the mean of its divisors is an integer number (740306880).

Almost surely, 2^9447984505 is an apocalyptic number.

It is an amenable number.

9447984505 is a deficient number, since it is larger than the sum of its proper divisors (2396925575).

9447984505 is a wasteful number, since it uses less digits than its factorization.

9447984505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99960.

The product of its (nonzero) digits is 7257600, while the sum is 55.

The square root of 9447984505 is about 97200.7433356350. The cubic root of 9447984505 is about 2114.0393042198.

The spelling of 9447984505 in words is "nine billion, four hundred forty-seven million, nine hundred eighty-four thousand, five hundred five".