7899448368 has 120 divisors (see below), whose sum is σ = 23899028400. Its totient is φ = 2241738240.

The previous prime is 7899448357. The next prime is 7899448373. The reversal of 7899448368 is 8638449987.

It is a junction number, because it is equal to n+sod(n) for n = 7899448299 and 7899448308.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 339178 + ... + 361718.

It is an arithmetic number, because the mean of its divisors is an integer number (199158570).

Almost surely, 2^7899448368 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 7899448368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11949514200).

7899448368 is an abundant number, since it is smaller than the sum of its proper divisors (15999580032).

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

7899448368 is a wasteful number, since it uses less digits than its factorization.

7899448368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22715 (or 22702 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 66.

The square root of 7899448368 is about 88878.8409465380. The cubic root of 7899448368 is about 1991.5853437645.

The spelling of 7899448368 in words is "seven billion, eight hundred ninety-nine million, four hundred forty-eight thousand, three hundred sixty-eight".