7289117680 has 80 divisors (see below), whose sum is σ = 19044406080. Its totient is φ = 2574342144.

The previous prime is 7289117677. The next prime is 7289117681. The reversal of 7289117680 is 867119827.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7289117681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128445 + ... + 176284.

It is an arithmetic number, because the mean of its divisors is an integer number (238055076).

Almost surely, 2^7289117680 is an apocalyptic number.

It is an amenable number.

7289117680 is an abundant number, since it is smaller than the sum of its proper divisors (11755288400).

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

7289117680 is a wasteful number, since it uses less digits than its factorization.

7289117680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304778 (or 304772 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 49.

The square root of 7289117680 is about 85376.3297407425. The cubic root of 7289117680 is about 1938.9129915015.

The spelling of 7289117680 in words is "seven billion, two hundred eighty-nine million, one hundred seventeen thousand, six hundred eighty".