5447438680 has 128 divisors (see below), whose sum is σ = 13047091200. Its totient is φ = 2042726400.

The previous prime is 5447438663. The next prime is 5447438683. The reversal of 5447438680 is 868347445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5447438683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17515725 + ... + 17516035.

It is an arithmetic number, because the mean of its divisors is an integer number (101930400).

Almost surely, 2^5447438680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5447438680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6523545600).

5447438680 is an abundant number, since it is smaller than the sum of its proper divisors (7599652520).

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

5447438680 is a wasteful number, since it uses less digits than its factorization.

5447438680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 661 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 49.

The square root of 5447438680 is about 73806.7658145241. The cubic root of 5447438680 is about 1759.5331363275.

The spelling of 5447438680 in words is "five billion, four hundred forty-seven million, four hundred thirty-eight thousand, six hundred eighty".