5447489856 has 56 divisors (see below), whose sum is σ = 14439778080. Its totient is φ = 1812475392.

The previous prime is 5447489851. The next prime is 5447489863. The reversal of 5447489856 is 6589847445.

It is a happy number.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 5447489856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447489851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79090 + ... + 130958.

It is an arithmetic number, because the mean of its divisors is an integer number (257853180).

Almost surely, 2^5447489856 is an apocalyptic number.

It is an amenable number.

5447489856 is an abundant number, since it is smaller than the sum of its proper divisors (8992288224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5447489856 is a wasteful number, since it uses less digits than its factorization.

5447489856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52431 (or 52421 counting only the distinct ones).

The product of its digits is 38707200, while the sum is 60.

The square root of 5447489856 is about 73807.1125027934. The cubic root of 5447489856 is about 1759.5386462923.

The spelling of 5447489856 in words is "five billion, four hundred forty-seven million, four hundred eighty-nine thousand, eight hundred fifty-six".