7199989920 has 288 divisors, whose sum is σ = 25827984000. Its totient is φ = 1822943232.

The previous prime is 7199989913. The next prime is 7199989933. The reversal of 7199989920 is 299899917.

It is a tau number, because it is divible by the number of its divisors (288).

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 47 ways as a sum of consecutive naturals, for example, 4934151 + ... + 4935609.

It is an arithmetic number, because the mean of its divisors is an integer number (89680500).

Almost surely, 2^7199989920 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 7199989920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12913992000).

7199989920 is an abundant number, since it is smaller than the sum of its proper divisors (18627994080).

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

7199989920 is a wasteful number, since it uses less digits than its factorization.

7199989920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1652 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 6613488, while the sum is 63.

The square root of 7199989920 is about 84852.7543453953. The cubic root of 7199989920 is about 1930.9778680874.

The spelling of 7199989920 in words is "seven billion, one hundred ninety-nine million, nine hundred eighty-nine thousand, nine hundred twenty".