7999200000 has 648 divisors, whose sum is σ = 31759810992. Its totient is φ = 1920000000.

The previous prime is 7999199987. The next prime is 7999200037. The reversal of 7999200000 is 29997.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 79199950 + ... + 79200050.

It is an arithmetic number, because the mean of its divisors is an integer number (49012054).

Almost surely, 2^7999200000 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 7999200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15879905496).

7999200000 is an abundant number, since it is smaller than the sum of its proper divisors (23760610992).

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

7999200000 is a wasteful number, since it uses less digits than its factorization.

7999200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 7999200000 is about 89438.2468522276. The cubic root of 7999200000 is about 1999.9333311110.

Adding to 7999200000 its reverse (29997), we get a palindrome (7999229997).

The spelling of 7999200000 in words is "seven billion, nine hundred ninety-nine million, two hundred thousand".