5447407680 has 448 divisors, whose sum is σ = 22582022400. Its totient is φ = 1218723840.

The previous prime is 5447407663. The next prime is 5447407709. The reversal of 5447407680 is 867047445.

5447407680 is a `hidden beast` number, since 544 + 7 + 40 + 7 + 68 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 1233316 + ... + 1237724.

It is an arithmetic number, because the mean of its divisors is an integer number (50406300).

Almost surely, 2^5447407680 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 5447407680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11291011200).

5447407680 is an abundant number, since it is smaller than the sum of its proper divisors (17134614720).

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

5447407680 is a wasteful number, since it uses less digits than its factorization.

5447407680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4459 (or 4443 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The square root of 5447407680 is about 73806.5558063781. Note that the first 3 decimals coincide. The cubic root of 5447407680 is about 1759.5297986347.

The spelling of 5447407680 in words is "five billion, four hundred forty-seven million, four hundred seven thousand, six hundred eighty".