7188326656 has 81 divisors (see below), whose sum is σ = 16713276489. Its totient is φ = 3076641792.

The previous prime is 7188326617. The next prime is 7188326693. The reversal of 7188326656 is 6566238817.

The square root of 7188326656 is 84784.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4440889600 + 2747437056 = 66640^2 + 52416^2 .

It is a super-2 number, since 2×7188326656² (a number of 21 digits) contains 22 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 8 ways as a sum of consecutive naturals, for example, 9495430 + ... + 9496186.

Almost surely, 2^7188326656 is an apocalyptic number.

7188326656 is the 84784-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7188326656

7188326656 is an abundant number, since it is smaller than the sum of its proper divisors (9524949833).

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

7188326656 is an frugal number, since it uses more digits than its factorization.

7188326656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 766 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The cubic root of 7188326656 is about 1929.9346408643.

The spelling of 7188326656 in words is "seven billion, one hundred eighty-eight million, three hundred twenty-six thousand, six hundred fifty-six".