7122408720 has 320 divisors, whose sum is σ = 26588774400. Its totient is φ = 1574899200.

The previous prime is 7122408719. The next prime is 7122408737. The reversal of 7122408720 is 278042217.

It is a super-3 number, since 3×7122408720³ (a number of 31 digits) contains 333 as substring.

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 63 ways as a sum of consecutive naturals, for example, 2550525 + ... + 2553315.

It is an arithmetic number, because the mean of its divisors is an integer number (83089920).

Almost surely, 2^7122408720 is an apocalyptic number.

7122408720 is a gapful number since it is divisible by the number (70) 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 7122408720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13294387200).

7122408720 is an abundant number, since it is smaller than the sum of its proper divisors (19466365680).

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

7122408720 is a wasteful number, since it uses less digits than its factorization.

7122408720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2859 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 7122408720 is about 84394.3642668158. The cubic root of 7122408720 is about 1924.0172614695.

The spelling of 7122408720 in words is "seven billion, one hundred twenty-two million, four hundred eight thousand, seven hundred twenty".