7198216992 has 144 divisors (see below), whose sum is σ = 20860519680. Its totient is φ = 2354075136.

The previous prime is 7198216981. The next prime is 7198216997. The reversal of 7198216992 is 2996128917.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (7198216997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3357873 + ... + 3360015.

It is an arithmetic number, because the mean of its divisors is an integer number (144864720).

Almost surely, 2^7198216992 is an apocalyptic number.

7198216992 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7198216992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10430259840).

7198216992 is an abundant number, since it is smaller than the sum of its proper divisors (13662302688).

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

7198216992 is a wasteful number, since it uses less digits than its factorization.

7198216992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375 (or 2364 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 7198216992 is about 84842.3066164517. The cubic root of 7198216992 is about 1930.8193601910.

The spelling of 7198216992 in words is "seven billion, one hundred ninety-eight million, two hundred sixteen thousand, nine hundred ninety-two".