7180326720 has 1008 divisors, whose sum is σ = 31588332048. Its totient is φ = 1486356480.

The previous prime is 7180326707. The next prime is 7180326787. The reversal of 7180326720 is 276230817.

It can be written as a sum of positive squares in 8 ways, for example, as 208744704 + 6971582016 = 14448^2 + 83496^2 .

It is a tau number, because it is divible by the number of its divisors (1008).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 98360604 + ... + 98360676.

It is an arithmetic number, because the mean of its divisors is an integer number (31337631).

Almost surely, 2^7180326720 is an apocalyptic number.

7180326720 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 7180326720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15794166024).

7180326720 is an abundant number, since it is smaller than the sum of its proper divisors (24408005328).

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

7180326720 is a wasteful number, since it uses less digits than its factorization.

7180326720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 7180326720 is about 84736.8085308858. The cubic root of 7180326720 is about 1929.2184294559.

The spelling of 7180326720 in words is "seven billion, one hundred eighty million, three hundred twenty-six thousand, seven hundred twenty".